Results Parity-time-symmetric sine-Gordon model. We consider a class of one-dimensional (1D) quantum systems described by the field theory Hamiltonian Z H^ ¼ & dx 'v 2p K @x ^y2 þ 1 K @x f^ 2 ! þ ' Vðf^Þ ; ð1Þ where f^ is a scalar field, @x...
Photonic Parity-Time (PT) symmetry takes advantage of these inherent losses, utilizing them in conjunction with balanced gain media to control eigenmode evolution. In this chapter, we review progress in PT-symmetric plasmonics, focusing on planar and coaxial geometries. We show how inclusion of ...
Although the energy exchange associated with such coupling to a reservoir in general gives rise to exponentially decaying or amplified states, certain symmetries may keep such instability at bay: as was shown by Bender and Böttcher in 1998, parity–time-symmetric (PT-symmetric)15 configurations ...
Synthetic non-conservative systems with parity-time (PT) symmetric gain-loss structures can exhibit unusual spontaneous symmetry breaking that accompanies spectral singularity. Recent studies on PT symmetry in optics and weakly interacting open quantum systems have revealed intriguing physical properties, yet...
A parity-time–symmetric optoelectronic oscillator was demonstrated without the use of a narrowband microwave or optical filter. An optoelectronic oscillator (OEO) is a hybrid microwave and photonic system incorporating an amplified positive feedback loop to enable microwave oscillation to generate a high...
Parity-time-symmetric microring lasers The ability to control the modes oscillating within a laser resonator is of fundamental importance. In general, the presence of competing modes can be detrimental to beam quality and spectral purity, thus leading to spatial as well as te... H Hodaei,MA ...
www.youtube.com/watch?v=fptaM9lOXMQ&list=PL04QVxpjcnjhj2EB0_CuF7yXidUuG-4ez Non-Hermitian Physics-"Pseudo-Hermitian Hamiltonians in Quantum Physics (PHHQP) XVIII" is the 18th meeting in the series that is being held over the years in Quantum Physics. 知识 校园学习 物理 大学 PT对称 ...
All-optical transistors and logic gates using a parity-time-symmetric Y-junction: Design and simulation Classical nonlinear or quantum all-optical transistors are dependent on the value of input signal intensity or need extra co-propagating beams. In this pap... S Ding,PW Guo - 《Journal of ...
by demonstrating a parity–time-symmetric topological insulator, we show that topological transport exists beyond these constraints. Implemented on a photonic platform, our non-Hermitian topological system harnesses the complex interplay between a discrete coupling protocol and judiciously placed losses and,...
【非厄米讲座】PT对称哈密顿量的量子模拟-Quantum simulations of parity-time symmetric Hamiltonians 240播放 ·0弹幕2020-11-21 11:46:31 www.youtube.com/watch?v=fptaM9lOXMQ&list=PL04QVxpjcnjhj2EB0_CuF7yXidUuG-4ez Non-Hermitian Physics-"Pseudo-Hermitian Hamiltonians in Quantum Physics (PHHQP...