Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Rossatto, D. Z."'
Publikováno v:
Phys. Rev. A 102, 053716 (2020)
Dicke superrandiance is a cooperative phenomenon which arises from the collective coupling of an ensemble of atoms to the electromagnetic radiation. Here we discuss the quantifying of quantum coherence for the Dicke model of superradiance in the mean
Externí odkaz:
http://arxiv.org/abs/2007.02872
Publikováno v:
Quantum Inf Process (2018) 17: 202
We theoretically investigate the implementation of the two-mode squeezing operator in circuit quantum electrodynamics. Inspired by a previous scheme for optical cavities [Phys. Rev. A $\textbf{73}$, 043803(2006)], we employ a superconducting qubit co
Externí odkaz:
http://arxiv.org/abs/1804.04728
Publikováno v:
Phys. Rev. A 97, 013851 (2018)
We propose a superconducting circuit to implement a two-photon quantum Rabi model in a solid-state device, where a qubit and a resonator are coupled by a two-photon interaction. We analyze the input-output relations for this circuit in the strong cou
Externí odkaz:
http://arxiv.org/abs/1711.10032
Publikováno v:
Scientific Reports 9, 19933 (2019)
We introduce the concept of degree of quantumness in quantum synchronization, a measure of the quantum nature of synchronization in quantum systems. Following techniques from quantum information, we propose the number of non-commuting observables tha
Externí odkaz:
http://arxiv.org/abs/1705.04614
Autor:
Rossatto, D. Z., Villas-Boas, C. J.
Publikováno v:
Phys. Rev. A 94, 033819 (2016)
Recently it was shown that the quantum behavior of an intense cavity field can be revealed by measuring the steady atomic correlations between two ideal atoms, which interact with the same leaking cavity mode. Considering a weak atom-field coupling r
Externí odkaz:
http://arxiv.org/abs/1605.09472
Publikováno v:
Phys. Rev. B 93, 094514 (2016)
We investigate how the dynamical Casimir effect can entangle quantum systems in different coupling regimes of circuit quantum electrodynamics, and show the robustness of such entanglement generation against dissipative effects with current technology
Externí odkaz:
http://arxiv.org/abs/1511.03825
Preparing two-atom entangled state in a cavity and probing it via quantum non-demolition measurement
Autor:
Rossatto, D. Z., Villas-Boas, C. J.
We propose a probabilistic scheme to prepare a maximally entangled state between a pair of two-level atoms inside a leaking cavity, without requiring precise time-controlling of the system evolution and initial atomic state. We show that the steady s
Externí odkaz:
http://arxiv.org/abs/1307.2258
Publikováno v:
Phys. Rev. A 86, 035802 (2012)
A class of Hamiltonians that are experimentally feasible in several contexts within quantum optics and lead to so-called cooling by heating for fermionic as well as for bosonic systems has been analyzed numerically. We have found a large range of par
Externí odkaz:
http://arxiv.org/abs/1210.0239
Publikováno v:
Physical Review A 84, 042113 (2011)
We study the dynamics of a two-level atom interacting with a Lorentzian structured reservoir considering initial system-environment correlations. It is shown that under strong system-reservoir coupling the dynamics of purity can determine whether the
Externí odkaz:
http://arxiv.org/abs/1108.2370
We investigate the quantum-to-classical crossover of a dissipative optical cavity mode based on measurement of the correlations between two atoms which do not interact with each other, but interact with the cavity mode. Firstly, we note that there is
Externí odkaz:
http://arxiv.org/abs/1102.0073