Geometry of quantum phase transitions
WebNov 22, 2016 · No Magnetic Field Required. The 1980 demonstration of the quantum Hall effect (see 15 May 2015 Focus story) marked the discovery of topological quantum matter.The early theory for the phenomenon, in which electrons confined to two dimensions acquire a quantized conductance in the presence of a perpendicular magnetic field, … WebWe introduce the notion of intertwined quantum phase transitions (IQPTs), for which a crossing of two configurations coexists with a pronounced shape-evolution of each configuration. A detailed analysis in the framework of the interacting boson model.
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. Nov 2, 2010 ·
WebNov 19, 2024 · Abstract and Figures. In this article we provide a review of geometrical methods employed in the analysis of quantum phase transitions and non-equilibrium … WebAug 20, 2024 · Abstract. We study Nielsen complexity and Fubini-Study complexity for the transverse XY spin chain and establish their nonanalyticity at the critical lines. We obtain the scaling behavior of both complexities near quantum phase transitions in the thermodynamic limit, as a function of the system parameters. The scaling of the Nielsen …
WebSep 7, 2007 · The manifold of coupling constants parametrizing a quantum Hamiltonian is equipped with a natural Riemannian metric with an operational distinguishability content. … 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
Web“Intrinsic Geometry of Quantum Adiabatic Evolution and Quantum Phase Transitions”, Phys. Rev. A ... “Quantum Phase Transitions and Bipartite Entanglement”, Phys. Rev. Lett. ...
WebDec 5, 2024 · The aim of the paper is to present a study of the magnetocaloric effect and the nature of phase transition in the Gd80Ge15Si5 (S1), Gd75Ge15Si5Ni5 (S2), Gd75Ge15Si5Pr5 (S3) and Gd75Ge15Si5Nd5 (S4) alloys. The magnetic entropy changes determined for studied samples, under external magnetic field ~3T, were 11.91, 12.11, … mclaren counselingWebare quantum phase transitions in the equilibrium shape and structure of the ground and low-lying states. This realization has sparked a new area of research, focusing on the concept of ‘critical ... lidded ceramic mug religiousWebJan 18, 2024 · After a pedagogical introduction to geometric phases and geometric information in the characterisation of quantum phase transitions, we describe recent … lidda tarrant countyWebSep 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. lidded basket lizard decorationWebFeb 13, 2024 · Learning phase transitions by confusion. Classifying phases of matter is key to our understanding of many problems in physics. For quantum-mechanical systems in particular, the task can be ... lidded coal scuttleWebApr 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 … lidded box with dividersWebQuantum phases. Quantum phases are quantum states of matter at zero temperature. Even at zero temperature a quantum-mechanical system has quantum fluctuations and … mclaren crash f1