Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Roffe, Joschka"'
Autor:
iOlius, Antonio deMarti, Martinez, Imanol Etxezarreta, Roffe, Joschka, Martinez, Josu Etxezarreta
Fault-tolerant quantum computers must be designed in conjunction with classical co-processors that decode quantum error correction measurement information in real-time. In this work, we introduce the belief propagation plus ordered Tanner forest (BP+
Externí odkaz:
http://arxiv.org/abs/2409.01440
Autor:
Hillmann, Timo, Berent, Lucas, Quintavalle, Armanda O., Eisert, Jens, Wille, Robert, Roffe, Joschka
Quantum low-density parity-check codes are a promising candidate for fault-tolerant quantum computing with considerably reduced overhead compared to the surface code. However, the lack of a practical decoding algorithm remains a barrier to their impl
Externí odkaz:
http://arxiv.org/abs/2406.18655
We present a new family of quantum low-density parity-check codes, which we call radial codes, obtained from the lifted product of a specific subset of classical quasi-cyclic codes. The codes are defined using a pair of integers $(r,s)$ and have para
Externí odkaz:
http://arxiv.org/abs/2406.14445
Publikováno v:
PRX Quantum 5, 020349 (2024)
Quantum error correction is crucial for scalable quantum information processing applications. Traditional discrete-variable quantum codes that use multiple two-level systems to encode logical information can be hardware-intensive. An alternative appr
Externí odkaz:
http://arxiv.org/abs/2311.01328
Autor:
Tiurev, Konstantin, Pesah, Arthur, Derks, Peter-Jan H. S., Roffe, Joschka, Eisert, Jens, Kesselring, Markus S., Reiner, Jan-Michael
Publikováno v:
Phys. Rev. Lett. 133, 110601 (2024)
We introduce the domain wall color code, a new variant of the quantum error-correcting color code that exhibits exceptionally high code-capacity error thresholds for qubits subject to biased noise. In the infinite bias regime, a two-dimensional color
Externí odkaz:
http://arxiv.org/abs/2307.00054
Autor:
Tiurev, Konstantin, Derks, Peter-Jan H. S., Roffe, Joschka, Eisert, Jens, Reiner, Jan-Michael
Publikováno v:
Quantum 7, 1123 (2023)
A common approach to studying the performance of quantum error correcting codes is to assume independent and identically distributed single-qubit errors. However, the available experimental data shows that realistic errors in modern multi-qubit devic
Externí odkaz:
http://arxiv.org/abs/2208.02191
Autor:
Roffe, Joschka, Cohen, Lawrence Z., Quintavalle, Armanda O., Chandra, Daryus, Campbell, Earl T.
Publikováno v:
Quantum 7, 1005 (2023)
Bias-tailoring allows quantum error correction codes to exploit qubit noise asymmetry. Recently, it was shown that a modified form of the surface code, the XZZX code, exhibits considerably improved performance under biased noise. In this work, we dem
Externí odkaz:
http://arxiv.org/abs/2202.01702
Publikováno v:
PRX Quantum 2, 020340 (2021)
Single-shot error correction corrects data noise using only a single round of noisy measurements on the data qubits, removing the need for intensive measurement repetition. We introduce a general concept of confinement for quantum codes, which roughl
Externí odkaz:
http://arxiv.org/abs/2009.11790
Publikováno v:
Phys. Rev. Research 2, 043423 (2020)
We show that belief propagation combined with ordered statistics post-processing is a general decoder for quantum low density parity check codes constructed from the hypergraph product. To this end, we run numerical simulations of the decoder applied
Externí odkaz:
http://arxiv.org/abs/2005.07016
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