Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Zagoskin, Alexandre M."'
Autor:
Qureshi, Mumnuna A., Zhong, Johnny, Mason, Peter, Betouras, Joseph J., Zagoskin, Alexandre M.
Publikováno v:
Phys. Rev. A 98, 012128 (2018)
Quantum systems are prone to decoherence due to both intrinsic interactions as well as random fluctuations from the environment. Using the Pechukas-Yukawa formalism, we investigate the influence of noise on the dynamics of an adiabatically evolving H
Externí odkaz:
http://arxiv.org/abs/1803.05034
Autor:
Qureshi, Mumnuna A, Zhong, Johnny, Qureshi, Zihad, Mason, Peter, Betouras, Joseph J, Zagoskin, Alexandre M
Publikováno v:
Phys. Rev. A 97, 032117 (2018)
We consider the evolution of a quantum state of a Hamiltonian which is parametrically perturbed via a term proportional to the adiabatic parameter \lambda (t). Starting with the Pechukas-Yukawa mapping of the energy eigenvalues evolution on a general
Externí odkaz:
http://arxiv.org/abs/1706.05243
Publikováno v:
Phys. Rev. A 95, 032126 (2017)
Theoretical description and simulation of large quantum coherent systems out of equilibrium remains a daunting task. Here we are developing a new approach to it based on the Pechukas-Yukawa formalism, which is especially convenient in case of an adia
Externí odkaz:
http://arxiv.org/abs/1610.02380
Autor:
Miranowicz, Adam, Bajer, Jiri, Paprzycka, Malgorzata, Liu, Yu-xi, Zagoskin, Alexandre M., Nori, Franco
Publikováno v:
Phys. Rev. A 90, 033831 (2014)
An arbitrary initial state of an optical or microwave field in a lossy driven nonlinear cavity can be changed, in the steady-state limit, into a partially incoherent superposition of only the vacuum and the single-photon states. This effect is known
Externí odkaz:
http://arxiv.org/abs/1407.5779
Autor:
Zagoskin, Alexandre M., Chipouline, Arkadi, Il'ichev, Evgeni, Johansson, J. Robert, Nori, Franco
Publikováno v:
Scientific Reports 5, Article number: 16934 (2015)
The requirements of quantum computations impose high demands on the level of qubit protection from perturbations; in particular, from those produced by the environment. Here we propose a superconducting flux qubit design that is naturally protected f
Externí odkaz:
http://arxiv.org/abs/1406.7678
Autor:
Zagoskin, Alexandre M., Ilichev, Evgeni, Grajcar, Miroslav, Betouras, Joseph J., Nori, Franco
Publikováno v:
Front. Physics 2:33 (2014)
We discuss whether, to what extent and how a quantum computing device can be evaluated and simulated using classical tools.
Comment: Submitted 12.10.2013
Comment: Submitted 12.10.2013
Externí odkaz:
http://arxiv.org/abs/1401.2870
A series of recent papers ``Faster than Hermitian Quantum Mechanics'' and related articles made a point of the possibility of a non-Hermitian, but PT-symmetric, operator to play the role of a Hamiltonian. In particular, they show that with an appropr
Externí odkaz:
http://arxiv.org/abs/0804.2051