Dynamical phase-field model of cavity electromagnonic systems
Sign Up to like & getrecommendations! Published in 2024 at "npj Computational Materials"
DOI: 10.1038/s41524-024-01380-w
Abstract: Cavity electromagnonic system, which simultaneously consists of cavities for photons, magnons (quanta of spin waves), and acoustic phonons, provides an exciting platform to achieve coherent energy transduction among different physical systems down to single quantum… read more here.
Keywords: phase field; cavity; cavity electromagnonic; dynamical phase ... See more keywords
Exploring dynamical phase transitions with cold atoms in an optical cavity
Sign Up to like & getrecommendations! Published in 2020 at "Nature"
DOI: 10.1038/s41586-020-2224-x
Abstract: Interactions between atoms and light in optical cavities provide a means of investigating collective (many-body) quantum physics in controlled environments. Such ensembles of atoms in cavities have been proposed for studying collective quantum spin models,… read more here.
Keywords: atoms optical; phase transitions; cavity; dynamical phase ... See more keywords
Sampling rare events across dynamical phase transitions.
Sign Up to like & getrecommendations! Published in 2019 at "Chaos"
DOI: 10.1063/1.5091669
Abstract: Interacting particle systems with many degrees of freedom may undergo phase transitions to sustain atypical fluctuations of dynamical observables such as the current or the activity. In some cases, this leads to symmetry-broken space-time trajectories… read more here.
Keywords: phase; events across; phase transitions; sampling rare ... See more keywords
Dynamical phase transition in a strongly hybridized phonon-triplon chain
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/c3tb-h5hv
Abstract: We study a dimerized spin-1/2 chain, such as CuGeO$_3$, hosting triplon excitations coupled to optical phonons under weak terahertz laser driving. Both phonons and triplons weakly lose energy into the surrounding baths, forming a non-equilibrium… read more here.
Keywords: triplon; dynamical phase; phonon triplon; phase ... See more keywords
Exploring dynamical phase transitions in the XY chain through a linear quench: Early and long-term perspectives
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.042209
Abstract: We investigate the nonequilibrium dynamics induced by a finite-time linear quench in the XY chain. Initially, we examine the dynamical quantum phase transition, characterized by the nonanalytic behavior of the Loschmidt amplitude. We find distinct… read more here.
Keywords: ramp; linear quench; long term; dynamical phase ... See more keywords
Observation of dynamical phase transitions in a topological nanomechanical system
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.024310
Abstract: Here, the authors present a novel scheme to study dynamical phase transitions (DPTs) from topological edge states in the Su-Schrieffer-Heeger model. They utilize eight coupled nanomechanical oscillators to simulate the quantum quenches and observe DPTs… read more here.
Keywords: dynamical phase; transitions topological; phase transitions; observation dynamical ... See more keywords
Anomalous dynamical phase in quantum spin chains with long-range interactions
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.104436
Abstract: The existence or absence of nonanalytic cusps in the Loschmidt-echo return rate is traditionally employed to distinguish between a regular dynamical phase (regular cusps) and a trivial phase (no cusps) in quantum spin chains after… read more here.
Keywords: phase; quantum spin; long range; spin chains ... See more keywords
Large deviations in chaotic systems: Exact results and dynamical phase transition.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.l042202
Abstract: Large deviations in chaotic dynamics have potentially significant and dramatic consequences. We study large deviations of series of finite lengths N generated by chaotic maps. The distributions generally display an exponential decay with N, associated… read more here.
Keywords: deviations chaotic; large deviations; phase transition; dynamical phase ... See more keywords
Delocalization-localization dynamical phase transition of random walks on graphs.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.107.024126
Abstract: We consider random walks evolving on two models of connected and undirected graphs and study the exact large deviations of a local dynamical observable. We prove, in the thermodynamic limit, that this observable undergoes a… read more here.
Keywords: delocalization; phase transition; dynamical phase; random walks ... See more keywords
Systematic analysis of critical exponents in continuous dynamical phase transitions of weak noise theories.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review. E"
DOI: 10.1103/physreve.111.064113
Abstract: Dynamical phase transitions (DPTs) are nonequilibrium counterparts of thermodynamic phase transitions and share many similarities with their equilibrium analogs. In continuous phase transitions, critical exponents (CEs) play a key role in characterizing the physics near… read more here.
Keywords: critical exponents; phase transitions; analysis; dynamical phase ... See more keywords
Geometrical interpretation of dynamical phase transitions in boundary-driven systems.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.96.062108
Abstract: Dynamical phase transitions are defined as nonanalytic points of the large deviation function of current fluctuations. We show that for boundary-driven systems, many dynamical phase transitions can be identified using the geometrical structure of an… read more here.
Keywords: driven systems; geometrical interpretation; boundary driven; phase transitions ... See more keywords