scholarly journals Giant and tunable Goos-Hänchen shift with a high reflectance induced by PT-symmetry in atomic vapor

2021 ◽  
Author(s):  
Peng Han ◽  
Wenxiu Li ◽  
Yang Zhou ◽  
Shuo Jiang ◽  
Xiaoyang Chang ◽  
...  
Keyword(s):  
Pt Symmetry ◽  
Atomic Vapor ◽  
High Reflectance

PT-symmetry in optics

2014 ◽  
Vol 184 (11) ◽  
pp. 1177-1198 ◽  
Author(s):  
A.A. Zyablovsky ◽  
Aleksei P. Vinogradov ◽  
Aleksandr A. Pukhov ◽  
A.V. Dorofeenko ◽  
A.A. Lisyansky
Keyword(s):  
Pt Symmetry

Genetic algorithm optimization for storing arbitrary multimode transverse images in thermal atomic vapor

2021 ◽  
Vol 118 (23) ◽  
pp. 234001
Author(s):  
Yun Chen ◽  
Chengyuan Wang ◽  
Ya Yu ◽  
Zibin Jiang ◽  
Jinwen Wang ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Atomic Vapor ◽  
Algorithm Optimization ◽  
Genetic Algorithm Optimization

scholarly journals Coupling-Independent Real-Time Wireless Resistive Sensing Through Nonlinear PT Symmetry

2020 ◽  
Vol 14 (6) ◽  
Author(s):  
Siavash Kananian ◽  
George Alexopoulos ◽  
Ada S.Y. Poon
Keyword(s):  
Real Time ◽  
Pt Symmetry

scholarly journals Quantum Zeno effects across a parity-time symmetry breaking transition in atomic momentum space

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Tao Chen ◽  
Wei Gou ◽  
Dizhou Xie ◽  
Teng Xiao ◽  
Wei Yi ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
State Of The Art ◽  
Cold Atom ◽  
Pt Symmetry ◽  
Level System ◽  
Flexible Control ◽  
Time Symmetry ◽  
Symmetry Phase ◽  
Lattice Quantum ◽  
Atomic Momentum

AbstractWe experimentally study quantum Zeno effects in a parity-time (PT) symmetric cold atom gas periodically coupled to a reservoir. Based on the state-of-the-art control of inter-site couplings of atoms in a momentum lattice, we implement a synthetic two-level system with passive PT symmetry over two lattice sites, where an effective dissipation is introduced through repeated couplings to the rest of the lattice. Quantum Zeno (anti-Zeno) effects manifest in our experiment as the overall dissipation of the two-level system becoming suppressed (enhanced) with increasing coupling intensity or frequency. We demonstrate that quantum Zeno regimes exist in the broken PT symmetry phase, and are bounded by exceptional points separating the PT symmetric and PT broken phases, as well as by a discrete set of critical coupling frequencies. Our experiment establishes the connection between PT-symmetry-breaking transitions and quantum Zeno effects, and is extendable to higher dimensions or to interacting regimes, thanks to the flexible control with atoms in a momentum lattice.

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