Results 21 to 30 of about 1,311,323 (290)

Bell States, Bell Operators, and Total Teleportation

open access: yesZeitschrift für Naturforschung A, 2001
Abstract We identify the operators and the corresponding physical quantities whose measurement allows in principle to obtain total teleportation of the unknown spin state of a single electron. We introduce an analogous scheme for a single photon and discuss its experimental implementation.
DEL RE, EUGENIO   +2 more
openaire   +2 more sources

Bayesian estimation for Bell state rotations

open access: yesAVS Quantum Science, 2023
This paper explores the effect of three-dimensional rotations on two-qubit Bell states and proposes a Bayesian method for the estimation of the parameters of the rotation. We use a particle filter to estimate the parameters of the rotation from a sequence of Bell state measurements, and we demonstrate that the resultant improvement over the optimal ...
Anastassiou, L.   +3 more
openaire   +3 more sources

Robustness of Bell violation of graph states to qubit loss

open access: yesPhysical Review Research, 2023
Graph states are special entangled states advantageous for many quantum technologies, including quantum error correction, multiparty quantum communication, and measurement-based quantum computation.
Shahar Silberstein, Rotem Arnon-Friedman
doaj   +1 more source

Role of Steering Inequality in Quantum Key Distribution Protocol

open access: yesQuanta, 2023
Violation of Bell's inequality has been the mainspring for secure key generation in an entanglement assisted Quantum Key Distribution (QKD) protocol.
Kaushiki Mukherjee   +2 more
doaj   +1 more source

Bell-Correlated Activable Bound Entanglement in Multiqubit Systems [PDF]

open access: yes, 2004
We show that the Hilbert space of even number ($\geq4$) of qubits can always be decomposed as a direct sum of four orthogonal subspaces such that the normalized projectors onto the subspaces are activable bound entangled (ABE) states.
A. Acin   +5 more
core   +2 more sources

Dissipative preparation of generalized Bell states [PDF]

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2013
A scheme is presented for the dissipative preparation of generalised Bell states of two-qubits, within the context of cavity QED. In the suggested protocol the dissipative processes of spontaneous emission and cavity loss are no longer undesirable, but essential to the required dynamics.
Sweke, R.   +2 more
openaire   +2 more sources

Constructing multipartite Bell inequalities from stabilizers

open access: yesPhysical Review Research, 2022
Bell inequality with a self-testing property has played an important role in quantum information processing with both fundamental and practical significance.
Qi Zhao, You Zhou
doaj   +1 more source

Cavity Carving of Atomic Bell States [PDF]

open access: yesPhysical Review Letters, 2017
9 pages, 7 figures including ...
Welte, S.   +4 more
openaire   +4 more sources

Spin Bath Decoherence of Quantum Entanglement [PDF]

open access: yes, 2005
We study an analytically solvable model for decoherence of a two spin system embedded in a large spin environment. As a measure of entanglement, we evaluate the concurrence for the Bell states (Einstein-Podolsky-Rosen pairs).
Beenakker   +26 more
core   +2 more sources

Effects of Excess Brain-Derived Human α-Synuclein on Synaptic Vesicle Trafficking

open access: yesFrontiers in Neuroscience, 2021
α-Synuclein is a presynaptic protein that regulates synaptic vesicle trafficking under physiological conditions. However, in several neurodegenerative diseases, including Parkinson’s disease, dementia with Lewy bodies, and multiple system atrophy, α ...
Cristina Román-Vendrell   +5 more
doaj   +1 more source

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