Photonic time crystals
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-17354-6
Abstract: When space (time) translation symmetry is spontaneously broken, the space crystal (time crystal) forms; when permittivity and permeability periodically vary with space (time), the photonic crystal (photonic time crystal) forms. We proposed the concept of… read more here.
Keywords: time crystal; space time; time; crystal photonic ... See more keywords
Time crystal dynamics in a weakly modulated stochastic time delayed system
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-022-08776-y
Abstract: Time crystal oscillations in interacting, periodically driven many-particle systems are highly regular oscillations that persist for long periods of time, are robust to perturbations, and whose frequency differs from the frequency of the driving signal.… read more here.
Keywords: time; time delayed; modulation; time crystal ... See more keywords
Imaginary Time Crystal of Thermal Quantum Matter
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/37/5/050503
Abstract: Spontaneous symmetry breaking is responsible for rich quantum phenomena from crystalline structures to superconductivity. This concept was boldly extended to the breaking of time translation, opening an avenue to finding exotic phases of quantum matter… read more here.
Keywords: crystal thermal; imaginary time; time crystal; time ... See more keywords
Shattered time: can a dissipative time crystal survive many-body correlations?
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aaf18b
Abstract: We investigate the emergence of a time crystal in a driven-dissipative many-body spin array. In this system the interplay between incoherent spin pumping and collective emission stabilizes a synchronized non-equilibrium steady state which in the… read more here.
Keywords: many body; time; body correlations; time crystal ... See more keywords
Nanoscopic time crystal obtained by nonergodic spin dynamics
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.195431
Abstract: We study the far-from-equilibrium properties of quenched magnetic nanoscopic classical spin systems. In particular, we focus on the interplay between lattice vibrations and magnetic frustrations induced by surface effects typical of an antiferromagnet. We use… read more here.
Keywords: time crystal; crystal obtained; temperature; spin ... See more keywords
Fate of a discrete time crystal in an open system
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.195135
Abstract: Following the recent realisation that periodically driven quantum matter can support new types of spatiotemporal order, now known as discrete time crystals (DTCs), we consider the stability of this phenomenon. Motivated by its conceptual importance… read more here.
Keywords: fate discrete; system; discrete time; crystal open ... See more keywords
Observation of a Space-Time Crystal in a Superfluid Quantum Gas.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.185301
Abstract: Time crystals are a phase of matter, for which the discrete time symmetry of the driving Hamiltonian is spontaneously broken. The breaking of discrete time symmetry has been observed in several experiments in driven spin… read more here.
Keywords: crystal superfluid; space time; time; time crystal ... See more keywords
Dynamical Transitions and Critical Behavior between Discrete Time Crystal Phases.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.020602
Abstract: In equilibrium physics, spontaneous symmetry breaking and elementary excitation are two concepts closely related with each other: the symmetry and its spontaneous breaking not only control the dynamics and spectrum of elementary excitations, but also… read more here.
Keywords: discrete time; time; time crystal; physics ... See more keywords
Inseparable Time-Crystal Geometries on the Möbius Strip
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review Letters"
DOI: 10.1103/physrevlett.127.263003
Abstract: Description of periodically and resonantly driven systems can lead to solid state models where condensed matter phenomena can be investigated in time lattices formed by periodically evolving Wannier-like states. Here, we show that different two-dimensional… read more here.
Keywords: time; time crystal; bius strip; inseparable time ... See more keywords
Dissipative Prethermal Discrete Time Crystal.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.130401
Abstract: An ergodic system subjected to an external periodic drive will be generically heated to infinite temperature. However, if the applied frequency is larger than the typical energy scale of the local Hamiltonian, this heating stops… read more here.
Keywords: time; prethermal period; discrete time; prethermal discrete ... See more keywords
Unleashing spontaneity in a time crystal
Sign Up to like & getrecommendations! Published in 2022 at "Science"
DOI: 10.1126/science.add2015
Abstract: Description Ordered patterns reoccur over time in an ultracold atomic gas trapped in light The quest to understand how systems develop order underlies the fundamental understanding of almost all sciences, from the origin of galaxies… read more here.
Keywords: time crystal; time; spontaneity time; unleashing spontaneity ... See more keywords