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Quantum error correction under numerically exact open-quantum-system dynamics
Physical Review Research, 2023 The known quantum error-correcting codes are typically built on approximative open-quantum-system models such as Born-Markov master equations. However, it is an open question how such codes perform in actual physical systems that, to some extent ...
Aravind P. Babu +5 more
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Frontiers in Physics, 2022 Quantum error correction technology is a vital method to eliminate noise during the operation of quantum computers. To solve the problem caused by noise, in this paper, reinforcement learning is used to encode defects of Semion codes, and the experience ...
Hao-Wen Wang +6 more
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Non-Pauli topological stabilizer codes from twisted quantum doubles [PDF]
Quantum, 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
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Practical Quantum Error Correction with the XZZX Code and Kerr-Cat Qubits [PDF]
PRX Quantum, 2021 The development of robust architectures capable of large-scale fault-tolerant quantum computation should consider both their quantum error-correcting codes and the underlying physical qubits upon which they are built, in tandem.
Andrew S. Darmawan +4 more
semanticscholar +1 more source
Better Than Worst-Case Decoding for Quantum Error Correction [PDF]
International Conference on Architectural Support for Programming Languages and Operating Systems, 2022 The overheads of classical decoding for quantum error correction in cryogenic quantum systems grow rapidly with the number of logical qubits and their correction code distance.
Gokul Subramanian Ravi +6 more
semanticscholar +1 more source
Distributed Quantum Error Correction for Chip-Level Catastrophic Errors. [PDF]
Physical Review Letters, 2022 Quantum error correction holds the key to scaling up quantum computers. Cosmic ray events severely impact the operation of a quantum computer by causing chip-level catastrophic errors, essentially erasing the information encoded in a chip.
Qiang-Da Xu +7 more
semanticscholar +1 more source
Embedded quantum-error correction and controlled-phase gate for molecular spin qubits
AIP Advances, 2021 A scalable architecture for quantum computing requires logical units supporting quantum-error correction. In this respect, magnetic molecules are particularly promising, since they allow one to define logical qubits with embedded quantum-error correction
A. Chiesa +5 more
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Perturbative Quantum Error Correction [PDF]
Physical Review Letters, 2011 We derive simple necessary and sufficient conditions under which a quantum channel obtained from an arbitrary perturbation from the identity can be reversed on a given code to the lowest order in fidelity. We find the usual Knill-Laflamme conditions applied to a certain operator subspace which, for a generic perturbation, is generated by the Lindblad ...
openaire +3 more sources
Motional quantum error correction [PDF]
Journal of Modern Optics, 2000 We examine the dynamics of a qubit stored in the motional degrees of freedom of an ultra-cold ion in an ion trap which is subject to the decoherence effects of a finite-temperature bath. We discover an encoding of the qubit, in two of the motional modes of the ion, which is stable against the occurrence of either none or one quantum jump.
Steinbach, J., Twamley, J.
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Approximate Autonomous Quantum Error Correction with Reinforcement Learning. [PDF]
Physical Review Letters, 2022 Autonomous quantum error correction (AQEC) protects logical qubits by engineered dissipation and thus circumvents the necessity of frequent, error-prone measurement-feedback loops.
Yexiong Zeng +4 more
semanticscholar +1 more source