Classical discrete time crystals
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-019-0782-3
Abstract: The spontaneous breaking of time-translation symmetry in periodically driven quantum systems leads to a new phase of matter: the discrete time crystal (DTC). This phase exhibits collective subharmonic oscillations that depend upon an interplay of… read more here.
Keywords: classical discrete; discrete time; time; time translation ... See more keywords
Time crystals transforming frequency combs in tunable photonic oscillators.
Sign Up to like & getrecommendations! Published in 2023 at "Chaos"
DOI: 10.1063/5.0141114
Abstract: The response of a tunable photonic oscillator, consisting of an optically injected semiconductor laser, under an injected frequency comb is considered with the utilization of the concept of the time crystal that has been widely… read more here.
Keywords: time; tunable photonic; frequency combs; frequency ... See more keywords
Optically trapped polariton condensates as semiclassical time crystals
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.033830
Abstract: We analyze nonequilibrium phase transitions in microcavity polariton condensates trapped in optically induced annular potentials. We develop an analytic model for annular optical traps, which gives an intuitive interpretation for recent experimental observations on the… read more here.
Keywords: polariton; trapped polariton; time; polariton condensates ... See more keywords
High-frequency expansion for Floquet prethermal phases with emergent symmetries: Application to time crystals and Floquet engineering
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.020301
Abstract: Prethermalization, where quasi-steady states are realized in the intermediate long time regime (prethermal regime), in periodically driven (Floquet) systems is an important phenomenon since it provides a platform of nontrivial Floquet many-body physics. In this… read more here.
Keywords: time; application; high frequency; time crystals ... See more keywords
Quantum Time Crystals from Hamiltonians with Long-Range Interactions.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.210602
Abstract: Time crystals correspond to a phase of matter where time-translational symmetry (TTS) is broken. Up to date, they are well studied in open quantum systems, where an external drive allows us to break discrete TTS,… read more here.
Keywords: quantum time; time; time crystals; crystals hamiltonians ... See more keywords
Comment on "Quantum Time Crystals and Interacting Gauge Theories in Atomic Bose-Einstein Condensates".
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.178901
Abstract: In a recent Letter [Phys. Rev. Lett. 123, 250402PRLTAO0031-900710.1103/PhysRevLett.123.250402], Öhberg and Wright describe a Bose-Einstein condensate trapped on a ring in the presence of the density-dependent gauge potential. It is claimed that the ground state… read more here.
Keywords: quantum time; comment quantum; time; time crystals ... See more keywords
Discrete Time Crystals Enforced by Floquet-Bloch Scars.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.133001
Abstract: We analytically identify a new class of quantum scars protected by spatiotemporal translation symmetries, dubbed Floquet-Bloch scars. They are distinguished from previous (quasi-)static scars by a rigid spectral pairing only possible in Floquet systems, where… read more here.
Keywords: bloch scars; time crystals; floquet bloch; discrete time ... See more keywords
Tuning between Continuous Time Crystals and Many-Body Scars in Long-Range XYZ Spin Chains.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.140602
Abstract: Persistent oscillatory dynamics in nonequilibrium many-body systems is a tantalizing manifestation of ergodicity breakdown that continues to attract much attention. Recent works have focused on two classes of such systems: discrete time crystals and quantum… read more here.
Keywords: many body; time; continuous time; body scars ... See more keywords
Measurement-Induced Continuous Time Crystals.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.150401
Abstract: Strong measurements usually restrict the dynamics of measured finite dimensional systems to the Zeno subspace, where subsequent evolution is unitary due to the suppression of dissipative terms. Here, we show qualitatively different behavior induced by… read more here.
Keywords: time; measurement induced; continuous time; time crystals ... See more keywords
Metasurface-based realization of photonic time crystals
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.adg7541
Abstract: Photonic time crystals are artificial materials whose electromagnetic properties are uniform in space but periodically vary in time. The synthesis of these materials and experimental observation of their physics remain very challenging because of the… read more here.
Keywords: time; physics; space; metasurface based ... See more keywords