Quantum dissipative systems beyond the standard harmonic model: Features of linear absorption and dynamics
نویسندگان
چکیده
منابع مشابه
on the effect of linear & non-linear texts on students comprehension and recalling
چکیده ندارد.
15 صفحه اولA unified stochastic formulation of dissipative quantum dynamics. II. Beyond linear response of spin baths.
We use the "generalized hierarchical equation of motion" proposed in Paper I [C.-Y. Hsieh and J. Cao, J. Chem. Phys. 148, 014103 (2018)] to study decoherence in a system coupled to a spin bath. The present methodology allows a systematic incorporation of higher-order anharmonic effects of the bath in dynamical calculations. We investigate the leading order corrections to the linear response app...
متن کاملChiral Dynamics beyond the Standard Model
A systematic search of Physics beyond the Standard Model is usually formulated in the framework of a Low-Energy Effective theory (LEET). One expects that at very high energies E > Λ there exist new (gauge) particles and that their interaction is governed by new (local) symmetries not contained in the SM gauge group SU(2)W × U(1)Y . In order to specify the LEET which would describe the Physics b...
متن کاملOscillatory dynamics and non-Markovian memory in dissipative quantum systems.
The nonequilibrium dynamics of a small quantum system coupled to a dissipative environment is studied. We show that (i) the oscillatory dynamics close to a coherent-to-incoherent transition is significantly different from the one of the classical damped harmonic oscillator and that (ii) non-Markovian memory plays a prominent role in the time evolution after a quantum quench.
متن کاملDissipative quantum dynamics with the surrogate Hamiltonian approach. A comparison between spin and harmonic baths.
The dissipative quantum dynamics of an anharmonic oscillator coupled to a bath is studied with the purpose of elucidating the differences between the relaxation to a spin bath and to a harmonic bath. Converged results are obtained for the spin bath by the surrogate Hamiltonian approach. This method is based on constructing a system-bath Hamiltonian, with a finite but large number of spin bath m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2019
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.5122896