Results 61 to 70 of about 163,214 (312)

Dynamics of multipartite quantum steering for different types of decoherence channels

open access: yesScientific Reports, 2023
Multipartite quantum steering, a unique resource for asymmetric quantum network information tasks, is very fragile to the inevitable decoherence, which makes it useless for practical purposes.
Wei-Chen Li   +5 more
doaj   +1 more source

Multi-Error-Correcting Amplitude Damping Codes

open access: yes, 2010
We construct new families of multi-error-correcting quantum codes for the amplitude damping channel. Our key observation is that, with proper encoding, two uses of the amplitude damping channel simulate a quantum erasure channel.
Duan, Runyao   +3 more
core   +1 more source

Detecting positive quantum capacities of quantum channels

open access: yesnpj Quantum Information, 2022
Determining whether a noisy quantum channel can be used to reliably transmit quantum information is a challenging problem in quantum information theory. This is because it requires computation of the channel’s coherent information for an unbounded number
Satvik Singh, Nilanjana Datta
doaj   +1 more source

Decoherence and entanglement degradation of a qubit-qutrit system in non-inertial frames

open access: yes, 2011
We study the effect of decoherence on a qubit-qutrit system under the influence of global, local and multilocal decoherence in non-inertial frames.
A. Ekert   +39 more
core   +1 more source

A new mechanism for saturating unstable r-modes in neutron stars [PDF]

open access: yes, 2013
We consider a new mechanism for damping the oscillations of a mature neutron star. The new dissipation channel arises if superfluid vortices are forced to cut through superconducting fluxtubes.
Andersson, Nils   +2 more
core   +3 more sources

Optimal linear optical implementation of a single-qubit damping channel

open access: yes, 2011
We experimentally demonstrate a single-qubit decohering quantum channel using linear optics. We implement the channel, whose special cases include both the amplitude-damping channel and the bit-flip channel, using a single, static optical setup ...
Fisher, Kent   +3 more
core   +1 more source

Local noise can enhance entanglement teleportation [PDF]

open access: yes, 2006
Recently we have considered two-qubit teleportation via mixed states of four qubits and defined the generalized singlet fraction. For single-qubit teleportation, Badziag {\em et al.} [Phys. Rev. A {\bf 62}, 012311 (2000)] and Bandyopadhyay [Phys. Rev. A {
K. Kraus, M. A. Nielsen, Ye Yeo
core   +2 more sources

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld   +9 more
wiley   +1 more source

Effects of tidal-forcing variations on tidal properties along a narrow convergent estuary [PDF]

open access: yes, 2018
A 1D analytical framework is implemented in a narrow convergent estuary that is 78 km in length (the Guadiana, Southern Iberia) to evaluate the tidal dynamics along the channel, including the effects of neap-spring amplitude variations at the mouth.
AJF Hoitink   +41 more
core   +1 more source

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

open access: yesAdvanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes   +3 more
wiley   +1 more source

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