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pro vyhledávání: '"Caneva, Tommaso"'
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Publikováno v:
New J. Phys. 19, 115002 (2017)
Achieving strong interactions between individual photons enables a wide variety of exciting possibilities in quantum information science and many-body physics. Cold atoms interfaced with nanophotonic structures have emerged as a platform to realize n
Externí odkaz:
http://arxiv.org/abs/1610.00988
Publikováno v:
Phys. Rev. X 6, 031017 (2016)
Realizing systems that support robust, controlled interactions between individual photons is an exciting frontier of nonlinear optics. To this end, one approach that has emerged recently is to leverage atomic interactions to create strong and spatial
Externí odkaz:
http://arxiv.org/abs/1511.00816
Autor:
Caneva, Tommaso, Manzoni, Marco T., Shi, Tao, Douglas, James S., Cirac, J. Ignacio, Chang, Darrick E.
Publikováno v:
New J. Phys. 17 (2015) 113001
There has been rapid development of systems that yield strong interactions between freely propagating photons in one dimension via controlled coupling to quantum emitters. This raises interesting possibilities such as quantum information processing w
Externí odkaz:
http://arxiv.org/abs/1501.04427
Autor:
Brouzos, Ioannis, Streltsov, Alexej I., Negretti, Antonio, Said, Ressa S., Caneva, Tommaso, Montangero, Simone, Calarco, Tommaso
Publikováno v:
Phys. Rev. A 92, 062110 (2015)
We extend the concept of quantum speed limit -- the minimal time needed to perform a driven evolution -- to complex interacting many-body systems. We investigate a prototypical many-body system, a bosonic Josephson junction, at increasing levels of c
Externí odkaz:
http://arxiv.org/abs/1412.6142
Autor:
Mukherjee, Victor, Carlini, Alberto, Mari, Andrea, Caneva, Tommaso, Montangero, Simone, Calarco, Tommaso, Fazio, Rosario, Giovannetti, Vittorio
Publikováno v:
Phys. Rev. A 88, 062326 (2013)
We consider a two-level quantum system prepared in an arbitrary initial state and relaxing to a steady state due to the action of a Markovian dissipative channel. We study how optimal control can be used for speeding up or slowing down the relaxation
Externí odkaz:
http://arxiv.org/abs/1307.7964
Publikováno v:
J. Stat. Mech. (2011) P07015
We investigate the out-of-equilibrium dynamics of the one-dimensional quantum Ising model after a sudden quench of the transverse magnetic field. While for a translationally invariant system the statistical description of the asymptotic order paramet
Externí odkaz:
http://arxiv.org/abs/1105.3176
Publikováno v:
Phys. Rev. A 84, 022326 (2011)
In this work we describe in detail the "Chopped RAndom Basis" (CRAB) optimal control technique recently introduced to optimize t-DMRG simulations [arXiv:1003.3750]. Here we study the efficiency of this control technique in optimizing different quantu
Externí odkaz:
http://arxiv.org/abs/1103.0855
Autor:
Caneva, Tommaso, Murphy, Michael, Calarco, Tommaso, Fazio, Rosario, Montangero, Simone, Giovannetti, Vittorio, Santoro, Giuseppe E.
Publikováno v:
Phys. Rev. Lett. 103, 240501 (2009)
Optimal control theory is a promising candidate for a drastic improvement of the performance of quantum information tasks. We explore its ultimate limit in paradigmatic cases, and demonstrate that it coincides with the maximum speed limit allowed by
Externí odkaz:
http://arxiv.org/abs/0902.4193
Publikováno v:
Phys. Rev. B 78, 104426 (2008)
The adiabatic quantum evolution of the Lipkin-Meshkov-Glick (LMG) model across its quantum critical point is studied. The dynamics is realized by linearly switching the transverse field from an initial large value towards zero and considering differe
Externí odkaz:
http://arxiv.org/abs/0806.4455