Zobrazeno 1 - 10
of 1 632
pro vyhledávání: '"Floreanini, R."'
The experimental data on the helicity amplitudes of charmonium decays allow us to measure entanglement in final state spin correlations and test possible violations of the Bell inequality. We find that the Bell inequality is violated with a significa
Externí odkaz:
http://arxiv.org/abs/2406.17772
The violation of the Bell inequality is one of the hallmarks of quantum mechanics and can be used to rule out local deterministic alternative descriptions. We utilize the data analysis published by the LHCb collaboration on the helicity amplitudes fo
Externí odkaz:
http://arxiv.org/abs/2305.04982
We consider a specific instance of a superconducting circuit, the so-called charge-qubit, consisting of a capacitor and a Josephson junction. Starting from the microscopic description of the latter in terms of two tunneling BCS models in the strong-c
Externí odkaz:
http://arxiv.org/abs/2304.13351
Quantum tomography provides the full reconstruction of the density matrix of a state. We use it to study the Higgs boson decay into weak gauge bosons. Anomalous couplings beyond the Standard Model can be constrained by means of observables easily def
Externí odkaz:
http://arxiv.org/abs/2304.02403
Publikováno v:
Eur.Phys.J.C (2023) 83:823
Quantum entanglement of weak interaction gauge bosons produced at colliders can be explored by computing the corresponding polarization density matrix. To this end, we consider the Higgs boson decays $H\to W W^*$ and $H\to Z Z^*$, in which $W^*$ and
Externí odkaz:
http://arxiv.org/abs/2302.00683
In phenomenological applications, time evolutions of Bloch-Redfield type are widely adopted for modelling open system dynamics, despite their non-positive preserving character: this physical inconsistency, that in general shows up at small times, is
Externí odkaz:
http://arxiv.org/abs/2206.04508
Publikováno v:
Phys.Rev.Lett. 127 (2021) 16, 161801
Entanglement between the spins of top-quark pairs produced at a collider can be used to test a (generalized) Bell inequality at energies never explored so far. We show how the measurement of a single observable can provide a test of the violation of
Externí odkaz:
http://arxiv.org/abs/2102.11883
Publikováno v:
Phys. Rep. 878, 1 (2020)
For systems consisting of distinguishable particles, there exists an agreed upon notion of entanglement which is fundamentally based on the possibility of addressing individually each one of the constituent parties. Instead, the indistinguishability
Externí odkaz:
http://arxiv.org/abs/2007.06253
Quantum detailed balance conditions and quantum fluctuation relations are two important concepts in the dynamics of open quantum systems: both concern how such systems behave when they thermalize because of interaction with an environment. We prove t
Externí odkaz:
http://arxiv.org/abs/1810.09174
Publikováno v:
Int. J. Quant. Inf. 15 (2017) 1740014
Quantum-enhanced metrology is boosting interferometer sensitivities to extraordinary levels, up to the point where table-top experiments have been proposed to measure Planck-scale effects predicted by quantum gravity theories. In setups involving mul
Externí odkaz:
http://arxiv.org/abs/1711.02358