Results 41 to 50 of about 222,230 (325)
Analog Quantum Error Correction [PDF]
Physical Review Letters, 1998 Quantum error-correction routines are developed for continuous quantum variables such as position and momentum. The result of such analog quantum error correction is the construction of composite continuous quantum variables that are largely immune to the effects of noise and decoherence.
Lloyd, Seth, Slotine, Jean-Jacques E.
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Triangular color codes on trivalent graphs with flag qubits
New Journal of Physics, 2020 The color code is a topological quantum error-correcting code supporting a variety of valuable fault-tolerant logical gates. Its two-dimensional version, the triangular color code, may soon be realized with currently available superconducting hardware ...
Christopher Chamberland +3 more
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Information-theoretic approach to quantum error correction and reversible measurement [PDF]
, 1997 Quantum operations provide a general description of the state changes allowed by quantum mechanics. The reversal of quantum operations is important for quantum error-correcting codes, teleportation, and reversing quantum measurements.
Benjamin Schumacher +4 more
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Quantum Error Correction for Metrology [PDF]
Physical 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
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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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Ability of stabilizer quantum error correction to protect itself from its own imperfection [PDF]
, 2014 The theory of stabilizer quantum error correction allows us to actively stabilize quantum states and simulate ideal quantum operations in a noisy environment.
Fujiwara, Yuichiro
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QUANTUM ERROR-CORRECTION FOR SPATIALLY CORRELATED ERRORS [PDF]
International 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
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Measurement-based estimator scheme for continuous quantum error correction
Physical 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
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Quantum error correction for continuously detected errors [PDF]
Physical 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
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Bias in Error-Corrected Quantum Sensing
Physical Review Letters, 2022 6 + 13 pages, 2 + 8 figures.
Ivan Rojkov +4 more
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