11 papers · ranked by Valyu relevance
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Practical quantum computing will require error rates well below those achievable with physical qubits. Quantum error correction1,2 offers a path to algorithmically relevant error rates by encoding logical qubits within many physical qubits, for which increasing the number of physical qubits enhances protection against…
Avimita Chatterjee, Subrata Das, Swaroop Ghosh, Ivano Ruo-Berchera
Quantum error correction (QEC) plays a crucial role in correcting noise and paving the way for fault-tolerant quantum computing. This field has seen significant advancements, with new quantum error correction codes emerging regularly to address errors effectively. Among these, topological codes, particularly surface…
Avimita Chatterjee, Debarshi Kundu, Swaroop Ghosh, Lu Wei + 3 more
'Daiwei Zhu' 'Jason Iaconis' 'Torin F. Stetina'] In the evolving field of quantum computing, optimizing Quantum Error Correction (QEC) parameters is crucial due to the varying types and amounts of physical noise across quantum computers. Traditional simulators use a forward paradigm to derive logical error rates from…
Fang Zhang, Jianxin Chen, Giuliano Benenti
Error correction is an essential part of the theory of quantum computation. However, new quantum computation students may find the theories of error correction and fault tolerance daunting, or they may be stuck with theoretical/outdated schemes (such as the one in the original proof of the threshold theorem by Aharonov…
Tatsuya Tomaru, Chihiro Yoshimura, Hiroyuki Mizuno
Surface code is a promising candidate for the quantum error corrections needed for fault-tolerant quantum computations because it can operate on a two-dimensional grid of qubits. However, the gates and control lines become dense as more and more qubits are integrated, making their design and control difficult. This…
Thomas R. Scruby, Kae Nemoto, Zhenyu Cai
We show how looped pipeline architectures-which use short-range shuttling of physical qubits to achieve bounded non-local connectivity-can efficiently implement the fault-tolerant non-Clifford gate between 2D surface codes described in (Sci. Adv. 6, eaay4929 (2020)). The shuttling schedule required is only marginally…
Craig Gidney, Michael Newman, Peter Brooks, Cody Jones
One of the biggest obstacles to building a large scale quantum computer is the high qubit cost of protecting quantum information. For two-dimensional architectures, the surface code has long been the leading candidate quantum memory, but can require upwards of a thousand physical qubits per logical qubit to reach…
Pierre-Marie Poulain, Luca Centurioni, Tamay Özgökmen, Jiachen Yang
Instruments drifting at the ocean surface are quasi-Lagrangian, that is, they do not follow exactly the near-surface ocean currents. The currents measured by three commonly-used drifters (CARTHE, CODE and SVP) are compared in a wide range of sea state conditions (winds up to 17 m/s and significant wave height up to 3…
Jianjiao Hao, Fuju Ye, Ying Ruan, Lei Chen + 3 more
'Xufeng Jing' 'George Kenanakis'] Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process. In this paper, we propose Hilbert-coding…
Daniel Matuszczyk, Frank Weichert, Stefano Berretti
A novel approach to detect and decode direct-part-marked, low-contrast data matrix codes on polymer-based selective laser sintering manufactured parts, which is able to work on lightweight devices, is presented. Direct-part marking is a concept for labeling parts directly, which can be carried out during the additive…
Anan Ashraf, Mohamed Shamel, Caroline Massieh, Ghada Elsaeed + 1 more
Background Energy drinks are acidic beverages with recognized erosive potential, but their effect on enamel characteristics relevant to orthodontic bonding remains incompletely described. This in vitro study evaluated the effect of continuous 24-hour immersion in two commercial energy drinks, Red Bull and Code Red, on…