Parity-time symmetry and variable optical isolation in active-passive-coupled microresonators. Nat. Photon. 8, 524–529 (2014). Article CAS Google Scholar Lin, Z. et al. Unidirectional invisibility induced by P
Parity time symmetryUnidirectional zero reflectionIn this letter, we study the propagation of acoustic waves through a one-dimensional multilayer structure composed of a thin defect layer sandwiched by two phononic crystals. Two kinds of defect states will generate in band gaps and both of them ...
Nearly one century after the birth of quantum mechanics, parity–time symmetry is revolutionizing and extending quantum theories to include a unique family of non-Hermitian Hamiltonians. While conceptually striking, experimental demonstration of parity–time symmetry remains unexplored in quantum electronic ...
Parity-time (PT) symmetry-based manipulation of linewidth and intensity enhancement.aUpper: schematic of the wavelength conversion, where a strong continuous-wave (CW) pump light is applied to convert a high-speed optical data stream carried by a signal wave to an idler wave. Middle and bottom...
Moreover, nonreciprocal light transmission due to enhanced optical nonlinearity in the broken PT-symmetry regime was demonstrated26. Such a PT-symmetric structure provides unique and previously-unattainable control of light and even sound26–32. Manipulating the photon-phonon interactions in such systems...
The influence of the imaginary potential on the fundamental and higher eigenmodes of the dark soliton has been analysed due to its potential applications. The role of nonlinearity and the coefficient of real potential on the PT-symmetry has also been studied. Methods: The stationary states are ...
remain real and energy is equally distributed between the gain and loss regions; in the broken phase, one of the eigenmodes grows expo- nentially while the other decays exponentially. Recently, the concept of PT symmetry has been extensively explored in laser structures 21–24 . Theoretical...
Quantum spectroscopy based on nonlinear interferometers attracts increasing attention due to its unique practical advantages [1]. By tailoring spontaneous parametric down conversion (SPDC) for generation of frequency-correlated photons and their nonlocal quantum interference, it becomes possible to perform ...
The concept of parity-time symmetry (PT symmetry) originates from the canonical quantum mechanics and has become a hot topic recently. As a versatile platform to investigate the intriguing concept, both theoretical and experimental works in optics have been implemented. In this paper, the PT symme...
Recent studies on PT symmetry in optics and weakly interacting open quantum systems have revealed intriguing physical properties, yet many-body correlations still play no role. Here by extending the idea of PT symmetry to strongly correlated many-body systems, we report that a combination of ...