Color code decoder with improved scaling for correcting circuit-level noise by Seok-Hyung Lee, Andrew Li, Stephen D. Bartlett

“…Two-dimensional color codes are a promising candidate for fault-tolerant quantum computing, as they have high encoding rates, transversal implementation of logical Clifford gates, and resource-efficient magic state preparation schemes. …”
Get full text

Fast algorithms for classical specifications of stabiliser states and Clifford gates by Nadish de Silva, Wilfred Salmon, Ming Yin

“…The stabiliser formalism plays a central role in quantum computing, error correction, and fault tolerance. …”
Get full text

Multipartite entanglement distribution in a topological photonic network by Juan Zurita, Andrés Agustí Casado, Charles E. Creffield, Gloria Platero

“…In the ongoing effort towards a scalable quantum computer, multiple technologies have been proposed. …”
Get full text

Hexagons govern three-qubit contextuality by Metod Saniga, Frédéric Holweck, Colm Kelleher, Axel Muller, Alain Giorgetti, Henri de Boutray

“…In connection with the last-mentioned case and elliptic quadrics we also conducted some experimental tests on a Noisy Intermediate Scale Quantum (NISQ) computer to substantiate our theoretical findings.…”
Get full text

Sparse Blossom: correcting a million errors per core second with minimum-weight matching by Oscar Higgott, Craig Gidney

“…For 0.1% circuit-level depolarising noise, sparse blossom processes syndrome data in both $X$ and $Z$ bases of distance-17 surface code circuits in less than one microsecond per round of syndrome extraction on a single core, which matches the rate at which syndrome data is generated by superconducting quantum computers. Our implementation is open-source, and has been released in version 2 of the PyMatching library.…”
Get full text

Linear gate bounds against natural functions for position-verification by Vahid Asadi, Richard Cleve, Eric Culf, Alex May

“…Both schemes require an honest prover to locally compute a classical function $f$ of inputs of length $n$, and manipulate $O(1)$ size quantum systems. …”
Get full text

Sequential and Programmable Squeezing Gates for Optical Non-Gaussian Input States by Takato Yoshida, Daichi Okuno, Takahiro Kashiwazaki, Takeshi Umeki, Shigehito Miki, Fumihiro China, Masahiro Yabuno, Hirotaka Terai, Shuntaro Takeda

“…Quantum computing has been pursued with various hardware platforms and an optical system is one of the most reasonable choices for large-scale computation. …”
Get full text

Blueprint for All-to-All-Connected Superconducting Spin Qubits by Marta Pita-Vidal, Jaap J. Wesdorp, Christian Kraglund Andersen

“…Our architecture shows promise both for gate-based quantum computing and for analog quantum simulation applications by offering higher qubit connectivity than alternative solid-state platforms.…”
Get full text

Preparing Schrödinger Cat States in a Microwave Cavity Using a Neural Network by Hector Hutin, Pavlo Bilous, Chengzhi Ye, Sepideh Abdollahi, Loris Cros, Tom Dvir, Tirth Shah, Yonatan Cohen, Audrey Bienfait, Florian Marquardt, Benjamin Huard

“…Scaling up quantum computing devices requires solving ever more complex quantum control tasks. …”
Get full text

Quasiprobabilistic Readout Correction of Midcircuit Measurements for Adaptive Feedback via Measurement Randomized Compiling by Akel Hashim, Arnaud Carignan-Dugas, Larry Chen, Christian Jünger, Neelay Fruitwala, Yilun Xu, Gang Huang, Joel J. Wallman, Irfan Siddiqi

“…Quantum measurements are a fundamental component of quantum computing. …”
Get full text

Sign Problem in Tensor-Network Contraction by Jielun Chen, Jiaqing Jiang, Dominik Hangleiter, Norbert Schuch

“…We investigate how the computational difficulty of contracting tensor networks depends on the sign structure of the tensor entries. …”
Get full text

Generalized Cycle Benchmarking Algorithm for Characterizing Midcircuit Measurements by Zhihan Zhang, Senrui Chen, Yunchao Liu, Liang Jiang

“…Midcircuit measurements (MCMs) are crucial ingredients in the development of fault-tolerant quantum computation. While there have been rapid experimental progresses in realizing MCMs, a systematic method for characterizing noisy MCMs is still under exploration. …”
Get full text

Toward a Classification of Mixed-State Topological Orders in Two Dimensions by Tyler D. Ellison, Meng Cheng

“…We study the resulting space of locally indistinguishable states and compute the modular transformations within a particular coherent space. …”
Get full text

Limitations to Dynamical Error Suppression and Gate-Error Virtualization from Temporally Correlated Nonclassical Noise by Michiel Burgelman, Nattaphong Wonglakhon, Diego N. Bernal-García, Gerardo A. Paz-Silva, Lorenza Viola

“…Realistic multiqubit noise processes often result in error mechanisms that are not captured by the probabilistic Markovian error models commonly employed in circuit-level analyses of quantum fault tolerance. By working within an open-quantum system Hamiltonian formulation, we revisit the validity of the notion of a constant gate error in the presence of noise that is both temporally correlated and nonclassical, and the impact of which is mitigated through perfect instantaneous dynamical decoupling subject to finite timing constraints. …”
Get full text

Decoding general error correcting codes and the role of complementarity by Yoshifumi Nakata, Takaya Matsuura, Masato Koashi

Get full text

Efficient fault-tolerant implementations of non-Clifford gates with reconfigurable atom arrays by Yifei Wang, Yixu Wang, Yu-An Chen, Wenjun Zhang, Tao Zhang, Jiazhong Hu, Wenlan Chen, Yingfei Gu, Zi-Wen Liu

“…Abstract To achieve scalable universal quantum computing, we need to implement a universal set of logical gates fault-tolerantly, for which the main difficulty lies with non-Clifford gates. …”
Get full text

Novel Trade-offs in 5 nm FinFET SRAM Arrays at Extremely Low Temperatures by Shivendra Singh Parihar, Girish Pahwa, Baker Mohammad, Yogesh Singh Chauhan, Hussam Amrouch

Get full text

Faster-than-Clifford simulations of entanglement purification circuits and their full-stack optimization by Vaishnavi L. Addala, Shu Ge, Stefan Krastanov

Get full text

Observation of multiple steady states with engineered dissipation by Li Li, Tong Liu, Xue-Yi Guo, He Zhang, Silu Zhao, Zheng-An Wang, Zhongcheng Xiang, Xiaohui Song, Yu-Xiang Zhang, Kai Xu, Heng Fan, Dongning Zheng

“…Abstract Simulating the dynamics of open quantum systems is essential in achieving practical quantum computation and understanding novel nonequilibrium behaviors. …”
Get full text

A Nanotechnology Enhancement to Moore's Law by Jerry Wu, Yin-Lin Shen, Kitt Reinhardt, Harold Szu, Boqun Dong

“…In viewing of mobile computing with insatiate appetite, we explored the necessary enhancement by an increasingly maturing nanotechnology and facing the inevitable quantum-mechanical atomic and nuclei limits. …”
Get full text