Quantum Phase Transition
Entanglement in the Quantum Phase Transition of the Half Integer Spin One Dimensional Heisenberg Model
... ∆ = correspond to the XY model. The anisotropy parameter is conveniently parameterized by ∆ = cos γ , where 0 ≤ < γ π . We restrict to the critical regime − < ∆ ≤ 1 1 , where the system displays correlation ...
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Finite-size scaling of the photon-blockade breakdown dissipative quantum phase transition
... dissipative quantum phase ...single quantum jump or other microscopic event can flip the system from one phase to the ...first-order phase transition in the thermody- namic ...
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THE NEW STATE OF MATTER - TOPOLOGICAL INSULATORS AND QUANTUM PHASE TRANSITION
... The Quantum Spin Hall (QSH) state, or the 2D topological insulator was first discovered in the HgTe/CdTe quantum ...a quantum phase transition in HgTe/CdTe quantum wells as a ...
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Symmetry-restoring quantum phase transition in a two-dimensional spinor condensate
... in quantum field ...a quantum phase transition between the low-density SU(2) symmetric condensate of singlet molecules and the polar one-particle condensate at high densities, where the mean ...
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Quantum Phase Transition in Triple Quantum Dot System and Its Consequences on Transport
... a quantum dot system one can observe Kondo effect in a sense of a singlet formation ...(triple quantum dot system on the corners of an equilateral ...of quantum phase ...caused quantum ...
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Quantum Phase Transition for One Dimensional Spin 1 XXZ Model with Uniaxial Single Ion Type Anisotropy
... of quantum phase transition [1] [2] [3] [4] [5], which occurs as a result of a sudden change in the ground state but the outside control parameter changed slowly, for the one-dimensional spin-1 ...
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A nonequilibrium quantum phase transition in strongly coupled spin chains
... Transport in the boundary driven XXZ chain has been studied under the coupling to Markovian spin baths, both in the linear response regime close to infinite temper- ature [38] and far from equilibrium in the presence of ...
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Quantum Phase Transition: Intra and Inter-Band Interaction on D- Wave Superconductivity
... a phase transition anomaly under applied external field, the field appears around the singularities at phase transition points and these explains why there is a shift in positions that are ...
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Landau levels, edge states, and strained magnetic waveguides in graphene monolayers with enhanced spin-orbit interaction
... a quantum phase transition takes place between the QSH phase and a second QSH-like phase with spin- filtered edge states, considered previously by Abanin et ...
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A THEORETICAL STUDY OF SUPER FLUID ? INSULATOR PHASE TRANSITION IN A GAS OF ULTRA COLD ATOMS AND EVALUATION OF ATOM DENSITY DISTRIBUTION AS A FUNCTION OF DISTANCE FROM THE CENTRE OF TRAP (R/A) USING BOSE-HUBBARD MODEL
... studied quantum phase transition from a super fluid to Mott insulator in a gas of ultra cold atoms and evaluated mean field particle density distribution as a function of ...of quantum Monte ...
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Landau Levels and Edge States in Graphene with Strong Spin-Orbit Coupling
... a quantum phase transition from the QSH phase, which survives for sufficiently small B and ∆ > λ /2, to a peculiar QH phase for large ...small-B phase turns into the helical ...
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Pimenov, Dimitri (2019): Beyond the Landau-Ginzburg-Wilson paradigm: analytical studies of non-standard quantum criticality. Dissertation, LMU München: Fakultät für Physik
... describe quantum phase transitions beyond the Landau-Ginzburg paradigm ...continuous quantum phase transition between two different symmetry broken phases is generically possible, if it ...
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Uniaxial ferroelectric quantum criticality in multiferroic hexaferrites BaFe12O19 and SrFe12O19
... measurements. The magnetic ordering temperature and magneto-electric behaviour of these materials may be tuned by chemical substitution realising a magnetic quantum phase transition and ...
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Entanglement transition from variable strength weak measurements
... a quantum phase transition of interacting many- body systems from an ergodic thermal phase with a large entropy to a nonergodic localized phase with a small entropy, but only if the ...
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The Scaling of Entanglement Entropy for One Spatial XXZ Spin Chain
... gapful phase to gapful phase transition happened between the Haldane phase and large-D phase; the type of the quantum phase transition between the Neel phase ...
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Dicke phase transition with multiple superradiant states in quantum chaotic resonators
... of quantum systems that has stirred a large interest in scientific research [1 – ...[20], quantum systems with impurities [21], and quantum dots ...a quantum phase transition ...
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Exciton-driven quantum phase transitions in holography
... study phase transitions driven by fermionic double-trace deformations in gauge-gravity ...of quantum critical ...the quantum phase transition naturally involves the condensation of a ...
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Cr doping induced negative transverse magnetoresistance in C d3 A s2 thin films
... ferromagnetic phase and the magnetic quantum-phase transition to a paramagnetic trivial state have been, respectively, demonstrated in different TI systems when increasing the magnetic doping ...
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Large-Scale Bose-Einstein Condensation in an Atomic Gas by Applying an Electric Field
... this transition is not driven by interactions between particles ...“quantum phase transition describes an abrupt change in the ground state of a many-body ...a quantum phase ...
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Type-II Bose-Mott insulators
... insulator transition in the dual vortex language, for simplicity shown in 2 + 1 ...the quantum phase transition to the Mott insulator, these loops “blow out”; the Mott insulator itself ...
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