Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Strini, Giuliano"'
Publikováno v:
MDPI Proceedings 12, 12 (2019)
The dynamical Casimir effect (DCE) manifests itself in the ultrastrong matter-field coupling (USC) regime, as a consequence of the nonadiabatic change of some parameters of a system. We show that the DCE is a fundamental limitation for standard quant
Externí odkaz:
http://arxiv.org/abs/1906.00468
Publikováno v:
Eur. Phys. J. D 72, 188 (2018)
We apply the Picard and Magnus expansions to both the semiclassical and the quantum Rabi model, with a switchable matter-field coupling. The case of the quantum Rabi model ia a paradigmatic example of finite-time quantum electrodynamics (QED), and in
Externí odkaz:
http://arxiv.org/abs/1802.08897
Autor:
Hoeb, Fabian, Angaroni, Fabrizio, Zoller, Jonathan, Calarco, Tommaso, Strini, Giuliano, Montangero, Simone, Benenti, Giuliano
Publikováno v:
Phys. Rev. A 96, 033851 (2017)
We introduce different strategies to enhance photon generation in a cavity within the Rabi model in the ultrastrong coupling regime. We show that a bang-bang strategy allows to enhance the effect of up to one order of magnitude with respect to simply
Externí odkaz:
http://arxiv.org/abs/1706.00048
Publikováno v:
Eur. Phys. J. D 70, 225 (2016)
We propose a method to measure the quantum state of a single mode of the electromagnetic field. The method is based on the interaction of the field with a probe qubit. The qubit polarizations along coordinate axes are functions of the interaction tim
Externí odkaz:
http://arxiv.org/abs/1605.02988
Publikováno v:
Phys. Rev. A 90, 052313 (2014)
We demonstrate, in the regime of ultrastrong matter-field coupling, the strong connection between the dynamical Casimir effect (DCE) and the performance of quantum information protocols. Our results are illustrated by means of a realistic quantum com
Externí odkaz:
http://arxiv.org/abs/1407.7567
Publikováno v:
Eur. Phys. J. D 68, 139 (2014)
We consider the interaction of a qubit with a single mode of the quantized electromagnetic field and show that, in the ultrastrong coupling regime and when the qubit-field interaction is switched on abruptly, the dynamical Casimir effect leads to the
Externí odkaz:
http://arxiv.org/abs/1312.6315
Publikováno v:
Phys. Rev. A 88 (2013) 033814
The Bloch vector's path of a two-level system exposed to a monochromatic field exhibits, in the regime of strong coupling, complex corkscrew trajectories. By considering the infinitesimal evolution of the two-level system when the field is treated as
Externí odkaz:
http://arxiv.org/abs/1305.1336
Publikováno v:
Eur. Phys. J. D 67 (2013) 83
Using a configuration-interaction variational method, we accurately compute the reduced, single-electron von Neumann entropy for several low-energy, singlet and triplet eigenstates of helium atom. We estimate the amount of electron-electron orbital e
Externí odkaz:
http://arxiv.org/abs/1204.6667
Autor:
Benenti, Giuliano, Strini, Giuliano
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 43 (2010) 215508
The diamond norm measures the distance between two quantum channels. From an operational vewpoint, this norm measures how well we can distinguish between two channels by applying them to input states of arbitrarily large dimensions. In this paper, we
Externí odkaz:
http://arxiv.org/abs/1004.4110
We explore the main processes involved in the evolution of general quantum systems by means of Diagrams of States, a novel method to graphically represent and analyze how quantum information is elaborated during computations performed by quantum circ
Externí odkaz:
http://arxiv.org/abs/0912.0026