Results 41 to 50 of about 40,499 (317)

Fault-tolerant simulation of Lattice Gauge Theories with gauge covariant codes [PDF]

open access: yesQuantum
We show in this paper that a strong and easy connection exists between quantum error correction and Lattice Gauge Theories (LGT) by using the Gauge symmetry to construct an efficient error-correcting code for Abelian $\mathbb{Z_2}$ LGTs.
L. Spagnoli, A. Roggero, N. Wiebe
doaj   +1 more source

Accessing quantum secrets via local operations and classical communication

open access: yes, 2013
Quantum secret-sharing and quantum error-correction schemes rely on multipartite decoding protocols, yet the non-local operations involved are challenging and sometimes infeasible. Here we construct a quantum secret-sharing protocol with a reduced number
Gheorghiu, Vlad, Sanders, Barry C.
core   +1 more source

Experimental Implementation of a Concatenated Quantum Error-Correcting Code [PDF]

open access: yes, 2004
Concatenated coding provides a general strategy to achieve the desired level of noise protection in quantum information storage and transmission. We report the implementation of a concatenated quantum error-correcting code able to correct against phase ...
A. M. Steane   +6 more
core   +1 more source

Entanglement renormalization, quantum error correction, and bulk causality

open access: yesJournal of High Energy Physics, 2017
Entanglement renormalization can be viewed as an encoding circuit for a family of approximate quantum error correcting codes. The logical information becomes progres-sively more well-protected against erasure errors at larger length scales. In particular,
Isaac H. Kim, Michael J. Kastoryano
doaj   +1 more source

Measurement-free fault-tolerant logical-zero-state encoding of the distance-three nine-qubit surface code in a one-dimensional qubit array

open access: yesPhysical Review Research, 2023
Generation of logical zero states encoded with a quantum error-correcting code is the first step for fault-tolerant quantum computation but requires considerably large resource overheads in general.
Hayato Goto, Yinghao Ho, Taro Kanao
doaj   +1 more source

Some New Quantum BCH Codes over Finite Fields

open access: yesEntropy, 2021
Quantum error correcting codes (QECCs) play an important role in preventing quantum information decoherence. Good quantum stabilizer codes were constructed by classical error correcting codes.
Lijuan Xing, Zhuo Li
doaj   +1 more source

Entanglement Purification of Any Stabilizer State [PDF]

open access: yes, 2006
We present a method for multipartite entanglement purification of any stabilizer state shared by several parties. In our protocol each party measures the stabilizer operators of a quantum error-correcting code on his or her qubits.
D. Gottesman   +7 more
core   +2 more sources

Error Correcting Codes in Quantum Theory

open access: yesPhysical Review Letters, 1996
Summary: A new type of uncertainty relation is presented, concerning the information-bearing properties of a discrete quantum system. A natural link is then revealed between basic quantum theory and the linear error correcting codes of classical information theory.
openaire   +3 more sources

Stabilizer Formalism for Operator Algebra Quantum Error Correction [PDF]

open access: yesQuantum
We introduce a stabilizer formalism for the general quantum error correction framework called operator algebra quantum error correction (OAQEC), which generalizes Gottesman's formulation for traditional quantum error correcting codes (QEC) and Poulin's ...
Guillaume Dauphinais   +2 more
doaj   +1 more source

High-Rate Quantum Low-Density Parity-Check Codes Assisted by Reliable Qubits [PDF]

open access: yes, 2015
Quantum error correction is an important building block for reliable quantum information processing. A challenging hurdle in the theory of quantum error correction is that it is significantly more difficult to design error-correcting codes with desirable
Fujiwara, Yuichiro   +2 more
core   +4 more sources

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