Fully integrated parity–time-symmetric electronics
Sign Up to like & getrecommendations! Published in 2022 at "Nature Nanotechnology"
DOI: 10.1038/s41565-021-01038-4
Abstract: Harnessing parity–time symmetry with balanced gain and loss profiles has created a variety of opportunities in electronics from wireless energy transfer to telemetry sensing and topological defect engineering. However, existing implementations often employ ad hoc… read more here.
Keywords: time symmetry; parity; microwave generation; parity time ... See more keywords
Discrete time symmetry breaking in quantum circuits: exact solutions and tunneling
Sign Up to like & getrecommendations! Published in 2019 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ab3f5e
Abstract: We discuss general properties of discrete time quantum symmetry breaking in degenerate parametric oscillators. Recent experiments in superconducting quantum circuit with Josephson junction nonlinearities give rise to new properties of strong parametric coupling and nonlinearities.… read more here.
Keywords: discrete time; solutions tunneling; time; symmetry breaking ... See more keywords
Radiative cooling induced by time-symmetry breaking in periodically driven systems
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.115440
Abstract: We theoretically study the thermal relaxation of many-body systems under the action of oscillating external fields. When the magnitude or the orientation of a field is modulated around values where the pairwise heat-exchange conductances depend… read more here.
Keywords: time; cooling induced; time symmetry; radiative cooling ... See more keywords
Observation of Transient Parity-Time Symmetry in Electronic Systems.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.065701
Abstract: We demonstrate the transient parity-time (PT) symmetry in electronics. It is revealed by equivalent circuit transformation according to the switching states of electronic systems. With the phasor method and Laplace transformation, we derive the hidden… read more here.
Keywords: electronic systems; symmetry electronic; parity time; time symmetry ... See more keywords
Rotation-Time Symmetry Breaking in Frustrated Chiral Nematic Driven by a Pulse-Train Waveform.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.117801
Abstract: We report waveform-induced rotation-time symmetry breaking in liquid crystal director motion. Homeotropic cells filled with a negative dielectric anisotropy chiral nematic exhibit persistent and visually observable waves of director orientation with a time period of… read more here.
Keywords: time; chiral nematic; symmetry breaking; time symmetry ... See more keywords
Parity-Time Symmetry in a Single-Loop Photonic System
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.2982911
Abstract: Non-Hermitian photonics based on parity-time (PT) symmetry has been considered an effective solution to achieve mode selection for optical or microwave single-mode oscillation. A PT-symmetric system is usually implemented using two mutually coupled elements with… read more here.
Keywords: parity time; time symmetry; geometry; loop ... See more keywords
Observation of exceptional points in magnonic parity-time symmetry devices
Sign Up to like & getrecommendations! Published in 2019 at "Science Advances"
DOI: 10.1126/sciadv.aax9144
Abstract: Parity-time symmetry has been theoretically and experimentally demonstrated in magnonics. Non-Hermitian Hamiltonians may still have real eigenvalues, provided that a combined parity-time (ƤƮ) symmetry exists. The prospect of ƤƮ symmetry has been explored in several… read more here.
Keywords: parity time; exceptional points; symmetry; time symmetry ... See more keywords
Wide-range robust wireless power transfer using heterogeneously coupled and flippable neutrals in parity-time symmetry
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.abo4610
Abstract: Recently, stationary wireless power transfer (WPT) has been widely adopted in commercial devices. However, the current WPT configuration is limited in its operational area and susceptible to operating condition changes, impeding its applications for dynamic… read more here.
Keywords: system; wireless power; parity time; time symmetry ... See more keywords
Anti–parity-time symmetry in diffusive systems
Sign Up to like & getrecommendations! Published in 2019 at "Science"
DOI: 10.1126/science.aaw6259
Abstract: Making heat stand still Dissipative oscillating systems (waves) can be described mathematically in terms of non-Hermitian physics. When parity-time symmetric systems have dissipative components, the interplay between gain and loss can lead to unusual and… read more here.
Keywords: parity time; time; physics; symmetry ... See more keywords