Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Cianciaruso, Marco"'
Autor:
Zhang, Chao, Bromley, Thomas R., Huang, Yun-Feng, Cao, Huan, Lv, Wei-Min, Liu, Bi-Heng, Li, Chuan-Feng, Guo, Guang-Can, Cianciaruso, Marco, Adesso, Gerardo
Publikováno v:
Phys. Rev. Lett. 123, 180504 (2019)
Quantum systems can be exploited for disruptive technologies but in practice quantum features are fragile due to noisy environments. Quantum coherence, a fundamental such feature, is a basis-dependent property that is known to exhibit a resilience to
Externí odkaz:
http://arxiv.org/abs/1907.10540
Publikováno v:
J. Phys. A: Math. Theor. 51, 325303 (2018)
The recent development of general quantum resource theories has given a sound basis for the quantification of useful quantum effects. Nevertheless, the evaluation of a resource measure can be highly non-trivial, involving an optimisation that is ofte
Externí odkaz:
http://arxiv.org/abs/1802.04066
Characterising two-sided quantum correlations beyond entanglement via metric-adjusted f-correlations
Publikováno v:
In: Ay N., Gibilisco P., Mat\'u\v{s} F. (eds) Information Geometry and Its Applications. IGAIA IV 2016. Springer Proceedings in Mathematics & Statistics, vol 252, pp. 411-430 (Springer, Cham)
We introduce an infinite family of quantifiers of quantum correlations beyond entanglement which vanish on both classical-quantum and quantum-classical states and are in one-to-one correspondence with the metric-adjusted skew informations. The `quant
Externí odkaz:
http://arxiv.org/abs/1707.07723
Autor:
Ringbauer, Martin, Bromley, Thomas R., Cianciaruso, Marco, Lami, Ludovico, Lau, W. Y. Sarah, Adesso, Gerardo, White, Andrew G., Fedrizzi, Alessandro, Piani, Marco
Publikováno v:
Phys. Rev. X 8, 041007 (2018)
Quantum coherence, present whenever a quantum system exists in a superposition of multiple classically distinct states, marks one of the fundamental departures from classical physics. Quantum coherence has recently been investigated rigorously within
Externí odkaz:
http://arxiv.org/abs/1707.05282
Publikováno v:
Phys. Rev. A 96, 012105 (2017)
We consider a two-level open quantum system undergoing either pure dephasing, dissipative, or multiply decohering dynamics and show that, whenever the dynamics is non-Markovian, the initial speed of evolution is a monotonic function of the relevant p
Externí odkaz:
http://arxiv.org/abs/1704.08061
Autor:
Regula, Bartosz, Piani, Marco, Cianciaruso, Marco, Bromley, Thomas R., Streltsov, Alexander, Adesso, Gerardo
Publikováno v:
New J. Phys. 20, 033012 (2018)
Characterizing genuine quantum resources and determining operational rules for their manipulation are crucial steps to appraise possibilities and limitations of quantum technologies. Two such key resources are nonclassicality, manifested as quantum s
Externí odkaz:
http://arxiv.org/abs/1704.04153
In this didactic article we explore the concept of quantum correlations beyond entanglement. We begin by introducing and motivating the classically correlated states and then showing how to quantify the quantum correlations using an entropic approach
Externí odkaz:
http://arxiv.org/abs/1611.01959
Publikováno v:
J. Phys. A: Math. Theor. 49, 473001 (2016)
Quantum information theory is built upon the realisation that quantum resources like coherence and entanglement can be exploited for novel or enhanced ways of transmitting and manipulating information, such as quantum cryptography, teleportation, and
Externí odkaz:
http://arxiv.org/abs/1605.00806
Autor:
Piani, Marco, Cianciaruso, Marco, Bromley, Thomas R., Napoli, Carmine, Johnston, Nathaniel, Adesso, Gerardo
Publikováno v:
Phys. Rev. A 93, 042107 (2016)
Quantum states may exhibit asymmetry with respect to the action of a given group. Such an asymmetry of states can be considered as a resource in applications such as quantum metrology, and it is a concept that encompasses quantum coherence as a speci
Externí odkaz:
http://arxiv.org/abs/1601.03782
Autor:
Napoli, Carmine, Bromley, Thomas R., Cianciaruso, Marco, Piani, Marco, Johnston, Nathaniel, Adesso, Gerardo
Publikováno v:
Phys. Rev. Lett. 116, 150502 (2016)
Quantifying coherence is an essential endeavour for both quantum foundations and quantum technologies. Here the robustness of coherence is defined and proven a full monotone in the context of the recently introduced resource theories of quantum coher
Externí odkaz:
http://arxiv.org/abs/1601.03781