Zobrazeno 1 - 10
of 873
pro vyhledávání: '"Vedral, V."'
Autor:
Lee, K. S., Tan, Y. P., Nguyen, L. H., Budoyo, R. P., Park, K. H., Hufnagel, C., Yap, Y. S., Møbjerg, N., Vedral, V., Paterek, T., Dumke, R.
Publikováno v:
New J. Phys. 24 12302 (2022)
Quantum and biological systems are seldom discussed together as they seemingly demand opposing conditions. Life is complex, "hot and wet" whereas quantum objects are small, cold and well controlled. Here, we overcome this barrier with a tardigrade --
Externí odkaz:
http://arxiv.org/abs/2112.07978
Autor:
Marletto, C., Vedral, V.
There have been various claims that the Equivalence Principle, as originally formulated by Einstein, presents several difficulties when extended to the quantum domain, even in the regime of weak gravity. Here we point out that by following the same a
Externí odkaz:
http://arxiv.org/abs/2004.11616
Autor:
Marletto, C., Vedral, V., Virzì, S., Rebufello, E., Avella, A., Piacentini, F., Gramegna, M., Degiovanni, I., Genovese, M.
Publikováno v:
Entropy 22 (2020) 228
Pseudo-density matrices are a generalisation of quantum states and do not obey monogamy of quantum correlations. Could this be the solution to the paradox of information loss during the evaporation of a black hole? In this paper we discuss this possi
Externí odkaz:
http://arxiv.org/abs/2002.07628
Autor:
Marletto, C., Vedral, V., Virzì, S., Rebufello, E., Avella, A., Piacentini, F., Gramegna, M., Degiovanni, I. P., Genovese, M.
Publikováno v:
Nat Commun 10, 182 (2019) doi:10.1038/s41467-018-08100-1
Closed timelike curves are striking predictions of general relativity allowing for time-travel. They are afflicted by notorious causality issues (e.g. grandfather's paradox). Quantum models where a qubit travels back in time solve these problems, at
Externí odkaz:
http://arxiv.org/abs/1911.02441
Autor:
Marletto, C., Vedral, V.
Publikováno v:
Phys. Rev. Lett. 125, 040401 (2020)
In the Aharonov-Bohm (AB) effect, a superposed charge acquires a detectable phase by enclosing an infinite solenoid, in a region where the solenoid's electric and magnetic fields are zero. Its generation seems therefore explainable only by the local
Externí odkaz:
http://arxiv.org/abs/1906.03440
Publikováno v:
Phys. Rev. Lett. 125, 163603 (2020)
It is commonly accepted that a parametric amplifier can simulate a phase-preserving linear amplifier regardless of how the latter is realized [Caves et al., Phys. Rev. A 86, 063802 (2012)]. If true, this reduces all phase-preserving linear amplifiers
Externí odkaz:
http://arxiv.org/abs/1903.09370
Publikováno v:
Quantum 3, 200 (2019)
The phase of an optical field inside a linear amplifier is widely known to diffuse with a diffusion coefficient that is inversely proportional to the photon number. The same process occurs in lasers which limits its intrinsic linewidth and makes the
Externí odkaz:
http://arxiv.org/abs/1811.08105
Two of us (CM and VV) recently showed how the quantum character of a physical system, in particular the gravitational field, can in principle be witnessed without directly measuring observables of that system, solely by its ability to mediate entangl
Externí odkaz:
http://arxiv.org/abs/1804.02662
Autor:
Xiong, T. P., Yan, L. L., Zhou, F., Rehan, K., Liang, D. F., Chen, L., Yang, W. L., Ma, Z. H., Feng, M., Vedral, V.
Publikováno v:
Phys. Rev. Lett. 120 (2018) 010601
Most non-equilibrium processes in thermodynamics are quantified only by inequalities, however the Jarzynski relation presents a remarkably simple and general equality relating non-equilibrium quantities with the equilibrium free energy, and this equa
Externí odkaz:
http://arxiv.org/abs/1803.10423
Autor:
Xiong, T. P., Yan, L. L., Zhou, F., Rehan, K., Liang, D. F., Chen, L., Yang, W. L., Ma, Z. H., Feng, M., Vedral, V.
Here we respond to a comment [arXiv:1802.01382] submitted recently on 'Experimental Verification of a Jarzynski-Related Information-Theoretic Equality by a Single Trapped Ion' PRL 120 010601 (2018). We consider that the argument is the thermalization
Externí odkaz:
http://arxiv.org/abs/1802.02392