Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A quantum computational approach to the open-pit mining problem
Yousef Hindy, Jessica Pointing, Meltem Tolunay +3 more·Jul 23, 2021
The determination of optimal open-pit profiles is a well-studied combinatorial optimization problem, with profound technical and conceptual relevance in computational mining. The ongoing evolution of quantum computing hardware and the recent advances...
Experimental demonstration of continuous quantum error correction
W. Livingston, M. Blok, E. Flurin +3 more·Jul 23, 2021
The storage and processing of quantum information are susceptible to external noise, resulting in computational errors. A powerful method to suppress these effects is quantum error correction. Typically, quantum error correction is executed in discre...
The Diagonal Distance of CWS Codes
Upendra S. Kapshikar·Jul 23, 2021
Quantum degeneracy in error correction is a feature unique to quantum error correcting codes, unlike their classical counterpart. It allows a quantum error correcting code to correct errors even when they can not uniquely pinpoint the error. The diag...
Cross-platform comparison of arbitrary quantum states
Ze-Pei Cian, D. Zhu, C. Noel +14 more·Jul 23, 2021
As we approach the era of quantum advantage, when quantum computers (QCs) can outperform any classical computer on particular tasks, there remains the difficult challenge of how to validate their performance. While algorithmic success can be easily v...
A Quantum Dot Plot Generation Algorithm for Pairwise Sequence Alignment
Joseph Clapis·Jul 23, 2021
The views, opinions and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official government position, policy, or decision, unless designated by other documentation. Approved for Public Release...
A survey on NIST PQ signatures
Nicola Di Chiano, Riccardo Longo, Alessio Meneghetti +1 more·Jul 23, 2021
Shor's shockingly fast quantum algorithm for solving the period-finding problem is a threat for the most common public-key primitives, as it can be efficiently applied to solve both the Integer Factorisation Problem and the Discrete Logarithm Problem...
Qsun: an open-source platform towards practical quantum machine learning applications
Quoc Chuong Nguyen, Le Bin Ho, Lan Nguyen Tran +1 more·Jul 22, 2021
Currently, quantum hardware is restrained by noises and qubit numbers. Thus, a quantum virtual machine (QVM) that simulates operations of a quantum computer on classical computers is a vital tool for developing and testing quantum algorithms before d...
Multiple Query Optimization using a Hybrid Approach of Classical and Quantum Computing
Tobias Fankhauser, M. Soler, R. M. Fuchslin +1 more·Jul 22, 2021
Quantum computing promises to solve difficult optimization problems in chemistry, physics and mathematics more efficiently than classical computers, but requires fault-tolerant quantum computers with millions of qubits. To overcome errors introduced ...
Nonlinear transformation of complex amplitudes via quantum singular value transformation
N. Guo, K. Mitarai, K. Fujii·Jul 22, 2021
Due to the linearity of quantum operations, it is not straightforward to implement nonlinear transformations on a quantum computer, making some practical tasks like a neural network hard to achieve. In this paper, we define a task called and provide ...
Quantum pattern recognition in photonic circuits
Rui Wang, C. Hernani-Morales, J. D. Mart'in-Guerrero +2 more·Jul 21, 2021
This paper proposes a machine learning method to characterize photonic states via a simple optical circuit and data processing of photon number distributions, such as photonic patterns. The input states consist of two coherent states used as referenc...
Certification of quantum states with hidden structure of their bitstrings
O. M. Sotnikov, I. A. Iakovlev, A. Iliasov +3 more·Jul 21, 2021
The rapid development of quantum computing technologies already made it possible to manipulate a collective state of several dozens of qubits, which poses a strong demand on efficient methods for characterization and verification of large-scale quant...
Probing Geometric Excitations of Fractional Quantum Hall States on Quantum Computers.
A. Kirmani, Kieran Bull, Chang-Yu Hou +5 more·Jul 21, 2021
Intermediate-scale quantum technologies provide new opportunities for scientific discovery, yet they also pose the challenge of identifying suitable problems that can take advantage of such devices in spite of their present-day limitations. In solid-...
Optimized Quantum Networks
Jorge Miguel-Ramiro, A. Pirker, W. Dür·Jul 21, 2021
The topology of classical networks is determined by physical links between nodes, and after a network request the links are used to establish the desired connections. Quantum networks offer the possibility to generate different kinds of entanglement ...
On-chip visible light communication-band metasurface modulators with niobium plasmonic nano-antenna arrays
K. Delfanazari, O. Muskens·Jul 21, 2021
We introduce chip-integrated visible light communication-band modulators based on niobium (Nb) metallic plasmonic nano-antenna arrays. Our plasmonic nano-devices provide strong sensitivity to the polarization of the incident visible light and the geo...
Superconducting Coupler with Exponentially Large On:Off Ratio
C. Leroux, A. Di Paolo, A. Blais·Jul 21, 2021
Tunable two-qubit couplers offer an avenue to mitigate errors in multiqubit superconducting quantum processors. However, most couplers operate in a narrow frequency band and target specific couplings, such as the spurious ZZ interaction. We introduce...
Classical theory of universal quantum work distribution in chaotic and disordered non-interacting Fermi systems
András Grabarits, M. Kormos, I. Lovas +1 more·Jul 21, 2021
We present a universal theory of quantum work statistics in generic disordered non-interacting Fermi systems, displaying a chaotic single-particle spectrum captured by random matrix theory. We consider quantum quenches both within a driven random mat...
Single‐Photon Nonreciprocity with an Integrated Magneto‐Optical Isolator
S. Ren, Wei Yan, Lantian Feng +10 more·Jul 20, 2021
Nonreciprocal photonic devices are essential components of classical optical information processing. It is interesting and important to investigate their feasibility in the quantum world. In this work, a single‐photon non‐reciprocal dynamical transmi...
Classification of small triorthogonal codes
Sepehr Nezami, Jeongwan Haah·Jul 20, 2021
Triorthogonal codes are a class of quantum error correcting codes used in magic state distillation protocols. We classify all triorthogonal codes with $n+k \le 38$, where $n$ is the number of physical qubits and $k$ is the number of logical qubits of...
Jet: Fast quantum circuit simulations with parallel task-based tensor-network contraction
Trevor Vincent, L. O'Riordan, Mikhail Andrenkov +4 more·Jul 20, 2021
We introduce a new open-source software library Jet, which uses task-based parallelism to obtain speed-ups in classical tensor-network simulations of quantum circuits. These speed-ups result from i) the increased parallelism introduced by mapping the...
Quantum Bayesian Neural Networks
N J Berner, Vincent Fortuin, Jonas Landman·Jul 20, 2021
Quantum machine learning promises great speedups over classical algorithms, but it often requires repeated computations to achieve a desired level of accuracy for its point estimates. Bayesian learning focuses more on sampling from posterior distribu...