Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Luo, Junyan"'
Floquet theory and other established semiclassical approaches are widely used methods to predict the state of externally-driven quantum systems, yet, they do not allow to predict the state of the photonic driving field. To overcome this shortcoming,
Externí odkaz:
http://arxiv.org/abs/2407.17732
We present a time-dependent variational approach with the multiple Davydov $D_2$ trial state to simulate the dynamics of light-matter systems when the field is in a coherent state with an arbitrary finite mean photon number. The variational approach
Externí odkaz:
http://arxiv.org/abs/2407.12228
We investigate the noise in spin transport through a single quantum dot (QD) tunnel coupled to ferromagnetic electrodes with noncollinear magnetizations. Based on a spin-resolved quantum master equation, auto- and cross-correlations of spin-resolved
Externí odkaz:
http://arxiv.org/abs/2403.08621
Photon-resolved Floquet theory keeps track of the photon exchange of a quantum system with a coherent driving field. It thus complements the standard full-counting statistics that counts the number of photons exchanged with incoherent photon modes gi
Externí odkaz:
http://arxiv.org/abs/2311.01509
We study the emission spectrum of two distant qubits strongly coupled to a waveguide by using the numerical and analytical approaches, which are beyond the Markovian approximation and the rotating-wave approximation (RWA). The numerical approach comb
Externí odkaz:
http://arxiv.org/abs/2304.11103
We study the vacuum Rabi splitting of a qubit ultrastrongly coupled to a high-$Q$ cavity mode and a radiation reservoir. Three methods are employed: a numerically exact variational approach with a multiple Davydov ansatz, the rotating-wave approximat
Externí odkaz:
http://arxiv.org/abs/2304.02674
Publikováno v:
In Process Biochemistry September 2024 144:248-255
Publikováno v:
Phys. Rev. A, 2020
We employ the Dirac-Frenkel variational principle and multiple Davydov ansatz to study time-dependent fluorescence spectra of a driven qubit in the weak- to strong qubit-reservoir coupling regimes, where both the Rabi frequency and spontaneous decay
Externí odkaz:
http://arxiv.org/abs/2008.09726
Publikováno v:
Phys. Rev. A 100, 013823 (2019)
We study the origin of the symmetry of the fluorescence spectrum from the two-level system subjected to a low-frequency periodic modulation and a near-resonant high-frequency monochromatic excitation by using the analytical and numerical methods base
Externí odkaz:
http://arxiv.org/abs/2003.05124
Publikováno v:
Phys. Rev. B 101, 125410 (2020)
We present a stochastic thermodynamics analysis of an electron-spin-resonance pumped quantum dot device in the Coulomb-blocked regime, where a pure spin current is generated without an accompanying net charge current. Based on a generalized quantum m
Externí odkaz:
http://arxiv.org/abs/1910.12275