scholarly journals Anharmonic Oscillators with Infinitely Many Real Eigenvalues and PT-Symmetry

2010 ◽  
Author(s):  
Kwang C. Shin
Keyword(s):  
Pt Symmetry ◽  
Anharmonic Oscillators

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

Perturbative-variational calculations in two-well anharmonic oscillators

1990 ◽  
Vol 42 (9) ◽  
pp. 5073-5078 ◽  
Author(s):  
F. Arias de Saavedra ◽  
E. Buenda
Keyword(s):  
Anharmonic Oscillators ◽  
Variational Calculations

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.

scholarly journals $\mathcal{PT}$ symmetry of the Su–Schrieffer–Heeger model with imaginary boundary potentials and next-nearest-neighboring coupling

2020 ◽  
Vol 32 (16) ◽  
pp. 165401 ◽  
Author(s):  
Xue-Si Li ◽  
Ze-Zhong Li ◽  
Lian-Lian Zhang ◽  
Wei-Jiang Gong
Keyword(s):  
Pt Symmetry
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