Results 51 to 60 of about 4,904,312 (334)
Imbalance entanglement: Symmetry decomposition of negativity [PDF]
Physical Review A, 2018 In the presence of symmetry, entanglement measures of quantum many-body states can be decomposed into contributions arising from distinct symmetry sectors. Here we investigate the decomposability of negativity, a measure of entanglement between two parts
E. Cornfeld, M. Goldstein, E. Sela
semanticscholar +1 more source
Revista Alicantina de Estudios InglesesThis article presents a corpus-assisted analysis of the rhetoric employed in the political tweets of Lauren Boebert and Isabel Díaz-Ayuso on the micro-blogging site X (formerly Twitter). This study adopts the analytical framework Appraisal Theory (Martin
María Milagros del Saz Rubio
doaj +1 more source
, 2007 The reinforcement learning theory suggests that the feedback negativity should be larger when feedback is unexpected. Two recent studies found, however, that the feedback negativity was unaffected by outcome probability.
Hajcak, Greg +3 more
core +1 more source
Entanglement negativity of fermions: Monotonicity, separability criterion, and classification of few-mode states [PDF]
Physical Review A, 2018 We study quantum information aspects of the fermionic entanglement negativity recently introduced in [Phys. Rev. B 95, 165101 (2017)] based on the fermionic partial transpose. In particular, we show that it is an entanglement monotone under the action of
Hassan Shapourian, S. Ryu
semanticscholar +1 more source
Disentanglement in a quantum critical environment
, 2007 We study the dynamical process of disentanglement of two qubits and two qutrits coupled to an Ising spin chain in a transverse field, which exhibits a quantum phase transition.
C. P. Sun +5 more
core +1 more source
Finite-temperature entanglement negativity of free fermions [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2018 The entanglement entropy of free fermions with a Fermi surface is known to obey a logarithmic scaling and violate the area law in all dimensions. Here, we would like to see how temperature affects the logarithmic scaling behavior. To this end, we compute
Hassan Shapourian, S. Ryu
semanticscholar +1 more source
Harvesting Large Scale Entanglement in de Sitter Space with Multiple Detectors
Entropy, 2017 We consider entanglement harvesting in de Sitter space using a model of multiple qubit detectors. We obtain the formula of the entanglement negativity for this system.
Shingo Kukita, Yasusada Nambu
doaj +1 more source
Detection of Gravitational Wave - An Application of Relativistic Quantum Information Theory [PDF]
, 2006 We show that a passing gravitational wave may influence the spin entropy and spin negativity of a system of $N$ massive spin-1/2 particles, in a way that is characteristic of the radiation. We establish the specific conditions under which this effect may
+10 more
core +2 more sources
Entanglement Swapping and Swapped Entanglement
Entropy, 2023 Entanglement swapping is gaining widespread attention due to its application in entanglement distribution among different parts of quantum appliances. We investigate the entanglement swapping for pure and noisy systems, and argue different entanglement ...
Sultan M. Zangi +3 more
doaj +1 more source
Thermal entanglement in a two-spin-qutrit system under a nonuniform external magnetic field
, 2005 The thermal entanglement in a two-spin-qutrit system with two spins coupled by exchange interaction under a magnetic field in an arbitrary direction is investigated. Negativity, the measurement of entanglement, is calculated.
Li, Shu-Shen, Zhang, Guo-Feng
core +1 more source