Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Giraud, O."'
Publikováno v:
Phys. Rev. Research 3, 022023 (2021)
Quantum multifractality is a fundamental property of systems such as non-interacting disordered systems at an Anderson transition and many-body systems in Hilbert space. Here we discuss the origin of the presence or absence of a fundamental symmetry
Externí odkaz:
http://arxiv.org/abs/2103.03068
Autor:
Arnal, M., Chatelain, G., Martinez, M., Dupont, N., Giraud, O., Ullmo, D., Georgeot, B., Lemarié, G., Billy, J., Guéry-Odelin, D.
Publikováno v:
Science Advances 6, eabc4886 (2020)
The field of quantum simulation, which aims at using a tunable quantum system to simulate another, has been developing fast in the past years as an alternative to the all-purpose quantum computer. In particular, the use of temporal driving has attrac
Externí odkaz:
http://arxiv.org/abs/2003.10387
Publikováno v:
Phys. Rev. Research 2, 012020 (2020)
We present a full description of the nonergodic properties of wavefunctions on random graphs without boundary in the localized and critical regimes of the Anderson transition. We find that they are characterized by two critical localization lengths:
Externí odkaz:
http://arxiv.org/abs/1904.08869
Publikováno v:
Phys. Rev. A 100, 012328 (2019)
With the advance of quantum information technology, the question of how to most efficiently test quantum circuits is becoming of increasing relevance. Here we introduce the statistics of lengths of measurement sequences that allows one to certify ent
Externí odkaz:
http://arxiv.org/abs/1902.04803
Publikováno v:
EPL 119, 48001 (2017)
We compare complex networks built from the game of go and obtained from databases of human-played games with those obtained from computer-played games. Our investigations show that statistical features of the human-based networks and the computer-bas
Externí odkaz:
http://arxiv.org/abs/1707.04044
Publikováno v:
Phys. Rev. A 96, 032322 (2017)
We investigate genuinely entangled $N$-qubit states with no $N$-partite correlations in the case of symmetric states. Using a tensor representation for mixed symmetric states, we obtain a simple characterization of the absence of $N$-partite correlat
Externí odkaz:
http://arxiv.org/abs/1707.04103
Publikováno v:
Phys. Rev. A 95, 012318 (2017)
We introduce the concept of "absolutely classical" spin states, in analogy to absolutely separable states of bi-partite quantum systems. Absolutely classical states are states that remain classical under any unitary transformation applied to them. We
Externí odkaz:
http://arxiv.org/abs/1611.06064
Publikováno v:
In Brain Multiphysics 2021 2
Publikováno v:
Phys. Rev. A 92, 052333 (2015)
We investigate multiqubit permutation-symmetric states with maximal entropy of entanglement. Such states can be viewed as particular spin states, namely anticoherent spin states. Using the Majorana representation of spin states in terms of points on
Externí odkaz:
http://arxiv.org/abs/1509.08300
Publikováno v:
Phys. Rev. E 92, 032914 (2015)
We present a comprehensive study of the destruction of quantum multifractality in the presence of perturbations. We study diverse representative models displaying multifractality, including a pseudointegrable system, the Anderson model and a random m
Externí odkaz:
http://arxiv.org/abs/1506.05720