Based on the requirement of squeezed state generation, we build the phase relationship between two electronic local oscillators for the cavity- and phase-locking branches, and a 2-way 90° power splitter is adopted to satisfy the phase relationship simultaneously, which greatly simplifies the experimental setup and adjusting process. A LC parallel resonant circuit, which is composed by the inher...

The problem of resonant generation of nonground-state condensates is addressed aiming at resolving the seeming paradox that arises when one resorts to the adiabatic representation. In this picture, the eigenvalues and eigenfunctions of a timedependent Gross-Pitaevskii Hamiltonian are also functions of time. Since the level energies vary in time, no definite transition frequency can be introduce...

Although Polarization Modulation offers a high spectral efficiency, it has been not exploited much in modern communication systems because of the involvement switching speeds and complexity associated hardware. We propose dynamically controllable graphene metasurface capable to switch polarization state incident THz waves real-time. The is designed by patterning two-dimensional sheets with Fano...

Abstract The article reviews the theory of open quantum system from a perspective non-Hermiticity that emerges environment with an infinite number degrees freedom. produces resonant states complex eigenvalues, resulting in peak structures scattering amplitudes and transport coefficients. After introducing definition we answer typical questions regarding systems. What is physical meaning eigenmo...

Starting from the Maxwell-Bloch equations for a 3D ring-cavity laser, we analyze stability of the nonlasing state and demonstrate that, at the instability threshold, the wave vectors of the critical perturbations belong to a paraboloid in the 3D space. Next, we derive a system of nonlinear evolution equations above the threshold. The nonlinearity in these equations is cubic. For certain sets of...

This paper represents a modified LCL-T (inductor inductor capacitor) series parallel resonant converter (SPRC) has been mathematically modeled and validated. The limitations of two element resonant topologies have been removed by adding a third reactive element. The study indicates the mathematical modeling and design of LCL-T SPRC. The proposed approach is expected to provide better voltage re...

To realize high efficiency and power density for resonant switched capacitor (ReSC) converters, it is critical to have a thorough understanding of the soft-switching mechanism design converter appropriately. However, this can be challenging as operation depends on multiple variables its difficulty increases quickly with respect topology complexity. This paper demonstrates framework using geomet...