Effective Landau-Zener transitions in the circuit dynamical Casimir effect with time-varying modulation frequency
نویسندگان
چکیده
منابع مشابه
Landau–Zener tunnelling in dissipative circuit QED
We investigate the influence of temperature and dissipation on the Landau–Zener transition probability in circuit QED. Dissipation is modelled by coupling the transmission line to a bath of harmonic oscillators, and the reduced density operator is treated within Bloch–Redfield theory. A phase-space representation allows an efficient numerical implementation of the resulting master equation. It ...
متن کاملLandau-Zener transitions in a linear chain
Landau-Zener ~LZ! theory treats a quantum system placed in a slowly varying external field. If such a system was prepared in a state of its discrete spectrum, it adiabatically follows this state until its time-dependent energy level crosses another one. Near the crossing point the adiabaticity can be violated and the system can escape from the state it occupied initially to another one. Landau ...
متن کاملCorrelations in noisy Landau-Zener transitions
We analyze the influence of colored classical Gaussian noise on Landau-Zener transitions during a two-level crossing in a time-dependent regular external field. Transition probabilities and coherence factors become random due to the noise. We calculate their two-time correlation functions, which describe the response of this two-level system to a weak external pulse signal. The spectrum and int...
متن کاملCharacterization of Landau-Zener transitions in systems with complex spectra.
This paper is concerned with the study of one-body dissipation effects in idealized models resembling a nucleus. In particular, we study the quantum mechanics of a free particle that collides elastically with the slowly moving walls of a Bunimovich stadium billiard. Our results are twofold. First, we develop a method to solve in a simple way the quantum mechanical evolution of planar billiards ...
متن کاملGauging a quantum heat bath with dissipative Landau-Zener transitions.
We calculate the exact Landau-Zener transition probabilities for a qubit with an arbitrary linear coupling to a bath at zero temperature. The final quantum state exhibits a peculiar entanglement between the qubit and the bath. In the special case of diagonal coupling, the bath does not influence the transition probability, whatever the speed of the Landau-Zener sweep. It is proposed to use Land...
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: Physical Review A
سال: 2016
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.93.052505