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Logical quantum processor based on reconfigurable atom arrays
Dolev Bluvstein, Simon J. Evered, Alexandra A. Geim +18
Suppressing errors is the central challenge for useful quantum computing, requiring quantum error correction for large-scale processing. However, the overhead in the realization of…
Data needs and challenges for quantum dot devices automation
Justyna P. Zwolak, Jacob M. Taylor, Reed W. Andrews +17
Gate-defined quantum dots are a promising candidate system for realizing scalable, coupled qubit systems and serving as a fundamental building block for quantum computers. However,…
Fault-Tolerant Quantum Memory using Low-Depth Random Circuit Codes
Jon Nelson, Gregory Bentsen, Steven T. Flammia +1
Low-depth random circuit codes possess many desirable properties for quantum error correction but have so far only been analyzed in the code capacity setting where it is assumed th…
Quantum Sensing with Erasure Qubits
Pradeep Niroula, Jack Dolde, Xin Zheng +7
The dominant noise in an "erasure qubit" is an erasure -- a type of error whose occurrence and location can be detected. Erasure qubits have potential to reduce the overhead associ…
Fault-tolerant hyperbolic Floquet quantum error correcting codes
Ali Fahimniya, Hossein Dehghani, Kishor Bharti +4
A central goal in quantum error correction is to reduce the overhead of fault-tolerant quantum computing by increasing noise thresholds and reducing the number of physical qubits r…
Quantum Lego Expansion Pack: Enumerators from Tensor Networks
ChunJun Cao, Michael J. Gullans, Brad Lackey +1
We provide the first tensor network method for computing quantum weight enumerator polynomials in the most general form. If a quantum code has a known tensor network construction o…
Effect of non-unital noise on random circuit sampling
Bill Fefferman, Soumik Ghosh, Michael Gullans +2
In this work, drawing inspiration from the type of noise present in real hardware, we study the output distribution of random quantum circuits under practical non-unital noise sour…
Bell sampling from quantum circuits
Dominik Hangleiter, Michael J. Gullans
A central challenge in the verification of quantum computers is benchmarking their performance as a whole and demonstrating their computational capabilities. In this work, we find…
A sharp phase transition in linear cross-entropy benchmarking
Brayden Ware, Abhinav Deshpande, Dominik Hangleiter +4
Demonstrations of quantum computational advantage and benchmarks of quantum processors via quantum random circuit sampling are based on evaluating the linear cross-entropy benchmar…
Phase transition in magic with random quantum circuits
Pradeep Niroula, Christopher David White, Qingfeng Wang +5
Magic is a property of quantum states that enables universal fault-tolerant quantum computing using simple sets of gate operations. Understanding the mechanisms by which magic is c…
The maximum refractive index of an atomic crystal $\unicode{x2013}$ from quantum optics to quantum chemistry
Francesco Andreoli, Bennet Windt, Stefano Grava +4
All known optical materials have an index of refraction of order unity. Despite the tremendous implications that an ultrahigh index could have for optical technologies, little rese…
Error Mitigation Thresholds in Noisy Random Quantum Circuits
Pradeep Niroula, Sarang Gopalakrishnan, Michael J. Gullans
Extracting useful information from noisy near-term quantum simulations requires error mitigation strategies. A broad class of these strategies rely on precise characterization of t…