Results 31 to 40 of about 25,119 (260)

Non-Pauli topological stabilizer codes from twisted quantum doubles [PDF]

open access: yesQuantum, 2021
It has long been known that long-ranged entangled topological phases can be exploited to protect quantum information against unwanted local errors. Indeed, conditions for intrinsic topological order are reminiscent of criteria for faithful quantum error ...
Julio Carlos Magdalena de la Fuente   +2 more
doaj   +1 more source

Quantum Error Correction of Time-correlated Errors

open access: yesQuantum Information Processing, 2007
14 pages, 3 ...
Lu, Feng, Marinescu, Dan C.
openaire   +4 more sources

Quantum Error Correction for Metrology [PDF]

open access: yesPhysical Review Letters, 2014
We propose and analyze a new approach based on quantum error correction (QEC) to improve quantum metrology in the presence of noise. We identify the conditions under which QEC allows one to improve the signal-to-noise ratio in quantum-limited measurements, and we demonstrate that it enables, in certain situations, Heisenberg-limited sensitivity.
Kessler, Eric   +3 more
openaire   +5 more sources

Quantum Error Correction for Communication

open access: yesPhysical Review Letters, 1996
We show how procedures which can correct phase and amplitude errors are in themselves sufficient to correct errors due to quantum entanglement, generalizing earlier results. We specify general criteria for quantum error correction, introduce quantum versions of the Hamming and the Gilbert-Varshamov bounds, and comment on the practical implementations ...
A. EKERT, MACCHIAVELLO, CHIARA
openaire   +2 more sources

Limits to Error Correction in Quantum Chaos [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
Silvestrov, P. G.   +2 more
openaire   +5 more sources

Quantum error correction for continuously detected errors [PDF]

open access: yesPhysical Review A, 2003
We show that quantum feedback control can be used as a quantum error correction process for errors induced by weak continuous measurement. In particular, when the error model is restricted to one, perfectly measured, error channel per physical qubit, quantum feedback can act to perfectly protect a stabilizer codespace. Using the stabilizer formalism we
Ahn, Charlene   +2 more
openaire   +8 more sources

Unified and Generalized Approach to Entanglement-Assisted Quantum Error Correction

open access: yesIEEE Transactions on Quantum Engineering
We introduce a framework for entanglement-assisted quantum error correcting codes that unifies the three original frameworks for such codes called entanglement-assisted quantum error correction, entanglement-assisted operator quantum error correction ...
Priya J. Nadkarni   +4 more
doaj   +1 more source

QUANTUM ERROR-CORRECTION FOR SPATIALLY CORRELATED ERRORS [PDF]

open access: yesInternational Journal of Quantum Information, 2008
It is shown that errors due to spatially correlated noises can be corrected by the quantum error-correction code and error-correction procedure prepared for those for independent noises. A model of noisy-channel which is under the influence of spatially correlated quantum Brownian motion is investigated within the framework of non-equilibrium thermo ...
Arimitsu, T.   +3 more
openaire   +1 more source

Measurement-based estimator scheme for continuous quantum error correction

open access: yesPhysical Review Research, 2022
Canonical discrete quantum error correction (DQEC) schemes use projective von Neumann measurements on stabilizers to discretize the error syndromes into a finite set, and fast unitary gates are applied to recover the corrupted information.
Sangkha Borah   +5 more
doaj   +1 more source

Quantum minimal surfaces from quantum error correction

open access: yesSciPost Physics, 2022
We show that complementary state-specific reconstruction of logical (bulk) operators is equivalent to the existence of a quantum minimal surface prescription for physical (boundary) entropies.
Chris Akers, Geoff Penington
doaj   +1 more source

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