Observation of continuous time crystals and quasi-crystals in spin gases
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DOI: 10.1038/s41467-025-64413-y
Abstract: Continuous time crystals (CTCs) are a phase of matter characterized by spontaneous breaking of continuous time-translation symmetry. Recently, CTCs have garnered interest due to breakthroughs in experimental implementation. Here we report the experimental observation of… read more here.
Keywords: time; spin gases; time crystals; quasi crystals ... See more keywords
Continuous time crystal coupled to a mechanical mode as a cavity-optomechanics-like platform
Sign Up to like & getrecommendations! Published in 2025 at "Nature Communications"
DOI: 10.1038/s41467-025-64673-8
Abstract: Time crystals are an enigmatic phase of matter in which a quantum mechanical system displays repetitive, observable motion – they spontaneously break the time translation symmetry. On the other hand optomechanical systems, where mechanical and… read more here.
Keywords: time; time crystal; time crystals; cavity ... See more keywords
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
Waveform shaping in photonic time-crystals
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-53391-8
Abstract: This paper reports on the waveform shaped by a finite duration photonic time-crystal with its permittivity and permeability periodically varying in time. A Gaussian-modulated sinusoidal pulse is incident onto this photonic time-crystal to evaluate the… read more here.
Keywords: shaping photonic; time; photonic time; time crystals ... 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
Quantum Dissipative Continuous Time Crystals.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review letters"
DOI: 10.1103/dc2s-94gv
Abstract: Continuous time crystals, i.e., nonequilibrium phases with a spontaneously broken continuous time-translational symmetry, have been studied and recently observed in the long time dynamics of open quantum systems. Here, we investigate a lattice of interacting… read more here.
Keywords: quantum dissipative; time; time crystals; dissipative continuous ... See more keywords
Thermodynamics and protection of discrete time crystals
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/hl8q-4wy9
Abstract: Discrete-Time Crystals (DTC) are a non-equilibrium phase of matter characterized by the breaking of time-translation symmetry in periodically driven quantum systems. In this work, we present a detailed thermodynamic analysis of a DTC in a… read more here.
Keywords: thermodynamics; discrete time; time; time crystals ... See more keywords
Symmetries and correlations in continuous time crystals
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.012220
Abstract: We demonstrate the inadequacy of mean-field theory by exploring the effects of initial state correlations on the dynamics of continuous time crystals, necessitating higher-order cumulant expansions. We exemplify this using cat states for which the… read more here.
Keywords: symmetries correlations; correlations continuous; time crystals; mean field ... 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
Subharmonic spin correlations and spectral pairing in Floquet time crystals
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/physrevb.111.184308
Abstract: Floquet time crystals are characterized by the subharmonic behavior of temporal correlation functions. Studying the paradigmatic time crystal based on the disordered Floquet quantum Ising model, we show that its temporal spin correlations are directly… read more here.
Keywords: floquet time; time; time crystals; temporal spin ... See more keywords