Geometry of quantum phase transitions
Nov 2, 2010 · WebSep 7, 2007 · The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. …
Geometry of quantum phase transitions
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WebApr 9, 2012 · In quantum mechanics the Berry phase is defined as a phase accumulated by the wave function during the adiabatic evolution around a closed path in the parameter space denoted by . This phase can be obtained by integrating the Berry connection: [1] along this path ( 1 ). Here to shorten notations we define ∂ μ ≡ ∂ sμ. http://qserver.usc.edu/blog/category/topics/quantum-phase-transitions/
WebSep 7, 2007 · The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. We argue that the singularities of this metric are in correspondence with the quantum phase transitions featured by the corresponding system. http://qpt.physics.harvard.edu/c21.pdf
WebApr 12, 2024 · The MT is commonly known as the temperature-driven spin-flop transition and is ideally associated with a first-order magnetic phase transition in α-Fe 2 O 3 where it transforms from a weak ferromagnetic (FM) phase with spins aligned perpendicular to the c-axis above the MT to a fully AFM phase with spins aligned parallel to the c-axis below … WebJul 26, 2024 · Transitions of many-particle quantum systems between distinct phases at absolute-zero temperature, known as quantum phase transitions, require an exacting …
WebOct 1, 2007 · For the one-dimensional transverse Ising model, the quantum phase transition close the energy gap of the system in the thermodynamic limit, resulting in the divergence of the quantum geometry ...
WebApr 7, 2024 · Geometry of quantum phase transitions Angelo Carollo et al-Phase transition in phase transition lines of quantum XY model X M Yang et al-This content was downloaded from IP address 207.46.13.194 on 07/04/2024 at 00:33. August2010 EPL, 91 (2010) 30003 www.epljournal.org tattoo thirteenWebGerardo Ortiz Department of Physics, Indiana University, Bloomington, Indiana 47405, U.S.A. Quantum matter often displays complex phase diagrams as a result of … the carpetbagger vtWebNov 1, 2010 · The geometry of quantum phase transitions 5 standard entangled pure states are those that lo ok mixed to lo cal observers. Given a pure state of a system, we … tattoo thorntonWebJan 11, 2007 · The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. … the carpetbaggers book plotWebIn this paper, we investigate the Ruppeiner thermodynamic geometry in the extended phase space of Reissner–Nordström (RN)-AdS black holes immersed in perfect fluid dark matter (PFDM) via P − V criticality. We first make a brief review on thermodynamics of this black hole, and further investigate the P − V criticality. We calculate the critical … tattoo thirskWebNov 2, 2010 · Quantum phase transitions (QPTs) offer wonderful examples of the radical macroscopic effects inherent in quantum physics: phase changes between different forms of matter driven by quantum rather than thermal fluctuations, typically at very low temperatures. QPTs provide new insight into outstanding problems such as high … the carpet bag in moby dick crosswordWebNov 11, 2024 · Quantum critical behavior of many-body phase transitions is one of the most fascinating yet challenging questions in quantum physics. Here, we improved the band-mapping method to investigate the quantum phase transition from superfluid to Mott insulators, and we observed the critical behaviors of quantum phase transitions in both … the carpet baggers were alert