• This is an overview of equilibrium statistical mechanics of classical fluids, with special applications to the structural and thermodynamic properties of systems made of particles interacting via the hard-sphere potential or related model potentials. (e-booksdirectory.com)
  • Far-from-equilibrium dynamics of quantum many-body systems is one of the most active research areas in physics. (phys.org)
  • Phase transitions is the basic phenomena of equilibrium statistical physics. (phys.org)
  • In this work we give a characterisation of first order phase transitions as equilibrium processes on the thermodynamic phase space for which the Legendre symmetry is broken. (arxiv.org)
  • Using these results we infer that the description in equilibrium of first order phase transitions is possible only when the potential is a homogeneous function of order one, unless a generalised Zeroth Law is postulated in order to allow for equilibrium between sub-parts of the system at different values of the intensive quantities. (arxiv.org)
  • Driven nonlinear resonators provide a fertile ground for phenomena related to phase transitions far from equilibrium, which can open opportunities unattainable in their linear counterparts. (nature.com)
  • The recently formulated macroscopic fluctuation theory is a successful description of out of equilibrium diffusive systems. (technion.ac.il)
  • For sufficiently large thickness ratios, the phase diagram features an I-N density inversion and triphasic I-N-C equilibrium, in agreement with experiment. (uu.nl)
  • Phase equilibrium, thermodynamic limit, and melting temperature in nanocrystals. (kiev.ua)
  • This module is aimed at giving a thorough mathematical introduction to equilibrium statistical mechanics, mainly focusing on concrete models of lattice spin systems. (warwick.ac.uk)
  • Understand how large complex systems at equilibrium can be described from microscopic rules. (warwick.ac.uk)
  • 3. describe the approach to the equilibrium state in terms of phase space concepts, reversibility and irreversibility. (lu.se)
  • 11. set up the partition function for simple systems and, based on the partition sum, characterize equilibrium states. (lu.se)
  • The course covers basic statistical physics and quantum physics, with a focus on systems in equilibrium states. (lu.se)
  • Researchers from Aalto University and Tampere University have developed a new theoretical method to study dynamical phase transitions in strongly correlated quantum systems. (phys.org)
  • To relate these phenomena to the bimodality of the shape distribution, we have calculated the liquid crystal phase behavior of binary mixtures of thick and thin hard platelets for various thickness ratios. (uu.nl)
  • The output of the system is the result of recursively combined intermodulation phenomena - both at formal (beats) and timbral (sidebands) time scales - together with the iterated nonlinearities inherent in the DSP structure. (rottingsounds.org)
  • In both cases, we investigate a phase transition phenomena from the associated dynamical system point of view. (uaeu.ac.ae)
  • At high concentrations, the theory predicts a coexistence between two columnar phases with distinctly different concentrations. (uu.nl)
  • In theoretical terms, these transitions may be "phase transitions" of self-organizing nonlinear systems. (uni-muenchen.de)
  • We show that the divergent susceptibility of the critical point is accompanied by spontaneous symmetry breaking and distinct phase noise properties in the two regimes, indicating the importance of a beyond nonlinear bifurcation interpretation. (nature.com)
  • For instance, in phase transition-based detectors and transition-edge sensors 27 , the reset time (return time to the critical bias point) can be significantly reduced using an ultrafast nonlinear process compared to thermodynamic transitions. (nature.com)
  • OTT, E , GREBOGI, C & YORKE, JA 1989, ' THEORY OF 1ST ORDER PHASE-TRANSITIONS FOR CHAOTIC ATTRACTORS OF NONLINEAR DYNAMICAL-SYSTEMS ', Physics Letters A , vol. 135, no. 6-7, pp. 343-348. (elsevierpure.com)
  • We describe how strong resonant interactions in multimode optomechanical systems can be used to induce controlled nonlinear couplings between single photons and phonons. (harvard.edu)
  • From a theoretical point of view, a phase diagram like the one shown on the right is expected: the QPT separates an ordered from a disordered phase (often, the low temperature disordered phase is referred to as 'quantum' disordered). (wikipedia.org)
  • We investigate, using Monte Carlo simulations, the phase diagram of a system of hard rectangles of size m × mk on a square lattice when the aspect ratio k is a non-integer. (epj.org)
  • We improve this hardness result by establishing it for bipartite graphs of maximum degree D. To this end, we first present a detailed picture for the phase diagram for the infinite D-regular tree, giving a refined picture of its first-order phase transition and establishing the critical temperature for the coexistence of the disordered and ordered phases. (dagstuhl.de)
  • Ionic microgels are additionally pH-responsive and possess a rich phase diagram. (lu.se)
  • In the second and third model, we investigate behavior of the models at (and close to) the point of the phase transition. (uni-muenchen.de)
  • The behavior of the system around the critical point is characterized by the order parameter (OP). Second-order phase transition displays continuity in the OP while exhibiting a discontinuity in the derivative of the OP. On the other hand, first-order transition is known to possess a discontinuous OP around the transition point. (nature.com)
  • Although absolute zero is not physically realizable, characteristics of the transition can be detected in the system's low-temperature behavior near the critical point. (wikipedia.org)
  • This quantum critical behavior manifests itself in unconventional and unexpected physical behavior like novel non Fermi liquid phases. (wikipedia.org)
  • A) Surveillance systems, which collect data continuously, monitor changes in infection outcomes (or behavior) at different levels of severity on the severity pyramid. (cdc.gov)
  • There is rapid feedback on how changes integrate with other team members' code, real production load, data, user behavior and third-party systems. (thoughtworks.com)
  • These contracts include expectations about the format of data exchanged, and also the behavior of the interacting systems. (thoughtworks.com)
  • Proposed on-line systems automatically group these similar intervals of execution into phases, where the intervals in a phase have homogeneous behavior and similar resource requirements. (ucsd.edu)
  • Opposite to the theory of interacting particle systems on Z^d where the macroscopic behavior is usually well understood, the case of Brownian particles moving in R^d and subject to local interaction is less complete. (tudelft.nl)
  • This limit is called the thermodynamic limit, an essential concept to understand phase transitions. (phys.org)
  • With the limited amount of funding at their disposal, scientists, and in particular physicists, do not have the luxury to study phase transitions directly in the thermodynamic limit. (phys.org)
  • A phase transition from a ferromagnet to a paramagnet is continuous and is of second order. (wikipedia.org)
  • These continuous transitions from an ordered to a disordered phase are described by an order parameter, which is zero in the disordered and nonzero in the ordered phase. (wikipedia.org)
  • The nature of the transitions between different phases is determined, and the critical exponents are numerically obtained for the continuous transitions. (epj.org)
  • That's why upgrades to systems connected by a contract need to be heavily orchestrated, a task that is difficult enough - and risks being disrupted completely by continuous deployment if we don't change the way we think about our workflow. (thoughtworks.com)
  • Besides the long-standing fundamental interest, quantum dynamics of correlated systems is highly topical for the emerging quantum computers. (phys.org)
  • Aim: In many cases, the dynamics of psychotherapeutic change processes is characterized by sudden and critical transitions. (uni-muenchen.de)
  • Phase transitions were simulated by shifting control parameters in the Hénon map dynamics, in a simulation model of psychotherapy processes (one by an external shift of the control parameter and one created by a simulated control parameter shift), and three sets of empirical time series generated by daily self-ratings of patients during the treatment. (uni-muenchen.de)
  • In the three simulated dynamics with known phase transitions, these could be identified, and in the empirical cases, the methods converged indicating one and the same transition (possibly the phase transitions of the cases). (uni-muenchen.de)
  • We studied structure and thermodynamic properties of cubic and tetragonal phases of pure uranium and U-Mo alloys using atomistic simulations: molecular dynamics and density functional theory. (hse.ru)
  • The political transformation to a parliamentary democracy will bring about fundamental changes to the system of governance along with far reaching impacts on social, economic and political dynamics. (who.int)
  • The overall aim of my research is to get a better understanding of the evolution and dynamics of our solar system, and how this has affected our planet. (lu.se)
  • A phase transition is a natural phenomenon in which a small change in a parameter, such as temperature, leads to drastic change in the properties of a substance, for instance water turning into ice. (phys.org)
  • In physics, a quantum phase transition (QPT) is a phase transition between different quantum phases (phases of matter at zero temperature). (wikipedia.org)
  • Contrary to classical phase transitions, quantum phase transitions can only be accessed by varying a physical parameter-such as magnetic field or pressure-at absolute zero temperature. (wikipedia.org)
  • A classical system does not have entropy at zero temperature and therefore no phase transition can occur. (wikipedia.org)
  • The temperature of the solid-state phase transition in the silica gel-1-octadecene system is shown to linearly depend on the ratio between the pore surface area and the pore volume. (kiev.ua)
  • The main attention was paid to the metastable g0-phase that is formed in U-Mo alloys at low temperature. (hse.ru)
  • Further analysis indicates that such nontrivial entropy curves can be attributable to the adsorption-induced solid-to-liquid phase transitions of the charged clusters under finite temperature conditions. (acs.org)
  • We then prove for all temperatures below this critical temperature (corresponding to the region where the ordered phase 'dominates') that it is #BIS-hard to approximate the partition function on bipartite graphs of maximum degree D. The #BIS-hardness result uses random bipartite regular graphs as a gadget in the reduction. (dagstuhl.de)
  • We study the phase-locking transition of two coupled low-dimensional superfluids, either two-dimensional superfluids at finite temperature, or one-dimensional superfluids at zero temperature. (aps.org)
  • The phase-locking is accompanied by a sizeable increase of the transition temperature ($T_{KT}$ in 2D) of the resulting double-layer superfluid, which suggests a plausible way of observing the Kibble-Zurek mechanism in two-dimensional cold atom systems by rapidly changing the ratio $T/T_{KT}$ varying the tunneling rate between the superfluids. (aps.org)
  • We analyze the corresponding linearized mean field equations with respect to estimating the phase transition temperature. (lu.se)
  • Thermoresponsive microgels are a popular model system to study phase transitions in soft matter, because temperature directly controls their volume fraction. (lu.se)
  • However, it is still an open question if different methods for timeseries analysis reveal convergent results indicating the moments of critical transitions and related precursors. (uni-muenchen.de)
  • Topics addressed include the concepts of scale and time invariance and their significance for quantum criticality, as well as brand new chapters on superfluid and superconductor quantum critical points, and quantum first order transitions. (hive.co.uk)
  • This abrupt change in the spectral response follows a square-root dependence around the critical point, exhibiting high sensitivity to parameter variation akin to systems around an exceptional point. (nature.com)
  • Phase transition marks a universal qualitative regime change in system properties as the control parameter is varied around a critical/transition point 26 . (nature.com)
  • The QPT occurs at the quantum critical point (QCP), where quantum fluctuations driving the transition diverge and become scale invariant in space and time. (wikipedia.org)
  • To familiarise students with statistical mechanics models, phase transitions, and critical behaviour. (warwick.ac.uk)
  • Apply basic ideas of phase transitions and critical behaviour to lattice systems of statistical mechanics. (warwick.ac.uk)
  • Have understood basic ideas of phase transitions and critical behaviour in several concrete examples. (warwick.ac.uk)
  • The project combines elements from graph theory, complex analysis and dynamical systems, and is motivated by problems in computational complexity and statistical physics regarding the location of zeros for graph polynomials. (academictransfer.com)
  • The new method to predict dynamical quantum phase transitions could be employed this way to study the performance of quantum computers," says Teemu Ojanen, Professor of computational physics at Tampere University. (phys.org)
  • Quantum phase transitions are strongly relevant in a number of fields, ranging from condensed matter to cold atom physics and quantum field theory. (hive.co.uk)
  • The study of phases of matter is a central theme in physics, and has been evolving in parallel with our improved understanding, via new concepts and methods, of many-body systems. (ucas.ac.cn)
  • Mukhamedov, F 2013, ' On Dynamical Systems and Phase Transitions for q + 1-state p-adic Potts Model on the Cayley Tree ', Mathematical Physics Analysis and Geometry , vol. 16, no. 1, pp. 49-87. (uaeu.ac.ae)
  • 12. determine the degrees of freedom of a system and calculate from these the prediction of classical physics for its heat capacity. (lu.se)
  • Phase transitions occur only in the limit of an infinite number of constituents, in which the system properties change in a truly discontinuous way. (phys.org)
  • See phase transition for Ehrenfest's classification of phase transitions by the derivative of free energy which is discontinuous at the transition). (wikipedia.org)
  • I will focus on current fluctuations of boundary driven systems within the macroscopic theory description, and discuss the relevance of the additivity principle to derive the large deviation function associated with the current fluctuations. (technion.ac.il)
  • Although the theory allows scientists to provide predictions for finite systems, the analysis we carry on here shows that it involves the intertwinement of both finite and infinite systems. (pitt.edu)
  • We investigate dissipative phase transitions in an open central spin system. (harvard.edu)
  • Realizing phase transitions based on the optical parametric processes can provide unique opportunities for sensing. (nature.com)
  • This includes interactions between databases and application servers and between application servers and client-side JavaScript, different backend systems talking to each other through messaging or events, different applications sharing a persistence layer, even different processes on the same machine talking to each other through sockets or signals. (thoughtworks.com)
  • Impact cratering is one of the most important geological processes in our solar system, and has played a major role in the evolution of our planet. (lu.se)
  • 8. explain the negative heat capacity of self-gravitating systems and its consequences in stellar processes. (lu.se)
  • The renormalisation group in real and momentum space is also established as the proper language to describe the behaviour of systems close to a quantum phase transition. (hive.co.uk)
  • The resultant structural and dynamical information was used to investigate how particle softness affects the phase behaviour of ionic microgels and to validate the proposed interaction potential. (lu.se)
  • We find that the architecture of the microgel plays a marked role in its phase behaviour. (lu.se)
  • When the two superfluids interact with each other, which is the case for polar condensates or for radio frequency induced double well potentials, further phases can be realized. (aps.org)
  • For the aforementioned ferromagnetic transition, the order parameter would represent the total magnetization of the system. (wikipedia.org)
  • In ferromagnetic case, we establish that if q is divisible by p, then such a dynamical system has two repelling and one attractive fixed points. (uaeu.ac.ae)
  • The classical phase transitions are driven by a competition between the energy of a system and the entropy of its thermal fluctuations. (wikipedia.org)
  • Despite a slowing of this activity with CMS's cancelation of some mandatory episodes, evidence suggests the transition is likely to once more accelerate, driven by physician interest in APMs, which will grow as the economics of the Medicare Physician Fee Schedule and Merit-based Incentive System (MIPS) become increasingly unattractive. (hfma.org)
  • These systems are driven by algorithms that dynamically classify intervals of execution into phases and predict phase changes. (ucsd.edu)
  • Quantum phase transitions can also be represented by the topological fermion condensation quantum phase transition, see e.g. strongly correlated quantum spin liquid. (wikipedia.org)
  • In the past decade, the discipline has seen spectacular progress in the research of topological states, phases of matter that are beyond the Landau-Ginzburg-Wilson symmetry-breaking paradigm, but characterized by new types of global quantum numbers. (ucas.ac.cn)
  • We investigate survival (for large times) of the set of infected particles and prove that for q small enough, the infection survives with positive probability, whereas for q close enough to 1, it almost surely dies out---hence, between the different regimes of $q$, a phase transition occurs. (uni-muenchen.de)
  • On behalf of grid operators, they also used the FORECAST model to investigate demand in the European energy system. (fraunhofer.de)
  • Phase diagrams for simple gases, gas mixtures, virial coefficients, van der Waals equation of state, empirical equations of state, generalized van der Waals theory. (lu.se)
  • Statistical mechanics describes physical systems with a huge number of particles. (warwick.ac.uk)
  • These lecture notes give a pedagogical introduction to phase transitions in disordered quantum systems and to the exotic Griffiths phases induced in their vicinity. (e-booksdirectory.com)
  • Nuclear matter is an idealized system of interacting nucleons ( protons and neutrons ) that exists in several phases of exotic matter that, as of yet, are not fully established. (wikipedia.org)
  • abstract = "Complex crystal symmetry variation is observed for the oxygenated PrBa2-xLaxCu3O7+y system (0≤x≤1, -0.12≤y≤0.39). (ntnu.edu.tw)
  • The original research article, published in Physical Review X , is titled "Determination of Dynamical Quantum Phase Transitions In Strongly Correlated Many-Body Systems Using Loschmidt Cumulants. (phys.org)
  • Sebastiano Peotta et al, Determination of Dynamical Quantum Phase Transitions in Strongly Correlated Many-Body Systems Using Loschmidt Cumulants, Physical Review X (2021). (phys.org)
  • The predictions are based on the Onsager-Parsons theory for the isotropic-nematic (I-N) transition combined with a modified Lennard-Jones-Devonshire cell theory for the columnar (C) state. (uu.nl)
  • The existence of a disordered isotropic phase, a nematic with only orientational order, a columnar phase with orientational and partial translational order, and a high density phase with no orientational order is shown. (epj.org)
  • it thus complements in a distinctive manner the standard Renormalization Group qualitative approach relying on infinite systems. (pitt.edu)
  • Recent results establish for the hard-core model (and more generally for 2-spin antiferromagnetic systems) that the computational complexity of approximating the partition function on graphs of maximum degree D undergoes a phase transition that coincides with the uniqueness/non-uniqueness phase transition on the infinite D-regular tree. (dagstuhl.de)
  • Damage to organs during transplantation occurs in 2 phases: the warm ischemic phase and the cold ischemic phase. (medscape.com)
  • Rather than the ionic charges, it is the dangling ends which drive phase transitions and interactions at low concentration. (lu.se)
  • This report provides you with the data to allow you to track and predict specific likelihood of approval (LOA) and phase transition success rate (PTSR) of a drug using a combination of machine learning and proprietary models. (globaldata.com)
  • We also predict the occurrence of first-order spectral phase transitions in coupled OPOs. (nature.com)
  • We improve phase prediction accuracy by applying confidence to phase prediction, and we develop architectures that can accurately predict the outcome of the next phase change, and the length of the next phase. (ucsd.edu)
  • 6. define and explain the concepts of phase transition and order parameter, and give examples from the mean field treatment of ferromagnetism. (lu.se)
  • The transition describes an abrupt change in the ground state of a many-body system due to its quantum fluctuations. (wikipedia.org)
  • A CPT describes a cusp in the thermodynamic properties of a system. (wikipedia.org)
  • This paper describes the first phase of research aimed at understanding explosion pressures that can develop in coal mines and the factors that lead to high explosion pressure and possible transition to detonation. (cdc.gov)
  • The world is currently in Phase 3 of the six-phase pandemic alert system, in which a new influenza virus subtype is causing disease in humans, but is not yet spreading efficiently and in a sustained way among humans. (who.int)
  • The objectives of the WHO global influenza preparedness plan are to reduce opportunities for human infection, strengthen the early warning system to early detect emergence of a pandemic virus and contain or delay spread at the source. (who.int)
  • This has profound implications for real-time monitoring in psychotherapy, especially in cases where a transition is not obvious to the eye. (uni-muenchen.de)
  • Will the drug transition to the next phase of its clinical pathway? (globaldata.com)
  • This paper presents a summary of some of the mine fire research and provides an overview of the next phase of the NIOSH mine fire research program. (cdc.gov)
  • This paper summarizes recent accomplishments in a research program that is addressing mine fire prevention, detection, management, and suppression, and provides an overview of the next phase of the NIOSH mine fire research program. (cdc.gov)
  • Phase transitions occur at a general level in systems composed by a large number of elementary constituents, for instance the molecules in a substance. (phys.org)
  • Energy transitions involve changes in economies, technologies and governance of energy systems. (lu.se)
  • These concurrent crises are disrupting health systems, weakening populations and creating fertile ground for new disease outbreaks. (who.int)
  • glass transition in the undercooled melt. (hse.ru)
  • We also describe an adaptive system that dynamically adjusts classification thresholds and splits phases with poor homogeneity. (ucsd.edu)
  • The UN System has set a resource mobilization target at about USD 70.24 million, in grants, for achievement of the UNDAF Outcomes. (who.int)
  • The Emergency Relief Coordinator formally activated an Inter-Agency Standing Committee (IASC) Level 3 emergency response the following day (12 November), noting that the magnitude of this sudden-onset humanitarian crisis justified system-wide resource mobilization. (who.int)
  • This approach shows how to perform safe and incremental releases during everyday story work, which reconciles the 'one-commit = one-deploy' developer workflow with the complexities of distributed systems. (thoughtworks.com)
  • In experiment, however, the demixing transition is pre-empted by a transition to a kinetically arrested, glassy state with structural features resembling a columnar phase. (uu.nl)
  • These methods are particularly important in the case of quantum systems which require a large amount of computational power even for an embarrassingly small number of constituents. (phys.org)
  • Meanwhile, a variety of methods is available to identify phase transitions even in short time series. (uni-muenchen.de)
  • Results: The applied methods showed converging results indicating the moments of dynamic transitions within an acceptable tolerance. (uni-muenchen.de)
  • The phase transitions of the system based on ethylene glycol monododecyl ether - lanthanum nitrate - water were studied by polarizing optical microscopy, differential scanning calorimetry and conductometry methods. (ac.ru)
  • METHODS: A 2-phase literature review search included a search of systematic reviews (2010-2018) for individual qualifying articles (Phase 1) and a search for individual articles on topics not addressed by a review (2010-2020) or that needed an update because they were in a review that was older (2010-2016) or showed insufficient evidence (Phase 2). (cdc.gov)
  • An integrated surveillance system for multiple circulating respiratory pathogens. (cdc.gov)
  • CDC works with the Lao Ministry of Health (MOH) to address HIV and influenza and strengthen laboratory systems, surveillance, and workforce capacities to respond to disease outbreaks. (cdc.gov)
  • 3 The Philippines' Surveillance in Post Extreme Emergencies and Disasters (SPEED), the mobile-based early warning system, was implemented during the response phase and should be shifted to the Philippine Integrated Disease Surveillance and Response system in the recovery phase. (who.int)
  • quantum mechanics does not play any role even if the actual phases require a quantum mechanical description (e.g. superconductivity). (wikipedia.org)
  • To understand quantum phase transitions, it is useful to contrast them to classical phase transitions (CPT) (also called thermal phase transitions). (wikipedia.org)
  • The study of phase transitions in various forms has kept scientists busy since the very beginnings of the scientific endeavor. (phys.org)
  • In the course of the transition to a sustainable energy economy, Germany's coal-fired and nuclear power plants will be removed from the grid. (fraunhofer.de)
  • This will yield important guidance for discussions on the future direction of the transition to a sustainable energy economy. (fraunhofer.de)
  • CDC's goal is to promote and demonstrate sustainable epidemic-control strategies that can be replicated, integrated, and scaled-up into existing health systems by the Laos government. (cdc.gov)
  • Strategic objective 10: in relation to the implementation of programmes through financially sustainable health-system approaches. (who.int)
  • The density inversion can be attributed to a marked shape fractionation among the coexisting phases with the thick species accumulating in the isotropic phase. (uu.nl)
  • The high density phase is a solid-like sublattice phase only if the length and width of the rectangles are not mutually prime, else, it is an isotropic phase. (epj.org)
  • We research the conditions under which such changes are feasible, particularly with respect to solar, wind and nuclear power as well as phasing out fossil fuels. (lu.se)
  • CDC offers scientific and technical expertise to strengthen the health workforce's abilities to improve data quality and analyze HIV program data, which helps provide the evidence base for the integration of new interventions and systems into national HIV guidelines. (cdc.gov)
  • As part of WHO's efforts to strengthen referral services for internally displaced people (IDPs) and refugees, I was happy to hand over 2 new ambulances to the Ministry of Health, reinforcing our commitment to strengthen the country's health system. (who.int)