Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,611
This Month
65
Today
0
Research Volume
15,683 papers in 12 months (-39% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Exploiting degeneracy in belief propagation decoding of quantum codes
Kao-Yueh Kuo, C. Lai·Apr 28, 2021
Quantum information needs to be protected by quantum error-correcting codes due to imperfect physical devices and operations. One would like to have an efficient and high-performance decoding procedure for the class of quantum stabilizer codes. A pot...
Classification and purification for the independent quantum channel through quantum error-correction
Long Huang, Xiaohua Wu, T. Zhou·Apr 27, 2021
The essence of quantum error-correction is to use redundant Hilbert space to identify and correct errors, and the channel fidelity of the quantum channel does not affect which errors can be identified and corrected. Based on this, it is found that qu...
Quantum Algorithms for Prediction Based on Ridge Regression
Menghan Chen, Chao-Hua Yu, Gongde Guo +1 more·Apr 27, 2021
We propose a quantum algorithm based on ridge regression model, which get the optimal fitting parameters w and a regularization hyperparameter {\alpha} by analysing the training dataset. The algorithm consists of two subalgorithms. One is generating ...
Quantum Decoherence Emulated in a Classical Device
B. Cour, Corey I. Ostrove, M. Starkey +1 more·Apr 27, 2021
We demonstrate that a classical emulation of quantum gate operations, here represented by an actual analog electronic device, can be modeled accurately as a quantum operation in terms of a universal set of Pauli operators. This observation raises the...
Quantum circuit synthesis of Bell and GHZ states using projective simulation in the NISQ era
O. Pires, E. I. Duzzioni, J. Marchi +1 more·Apr 27, 2021
Quantum Computing has been evolving in the last years. Although nowadays quantum algorithms performance has shown superior to their classical counterparts, quantum decoherence and additional auxiliary qubits needed for error tolerance routines have b...
Quantifying entanglement in cluster states built with error-prone interactions
Z. Qin, Woo-Ram Lee, B. Demarco +3 more·Apr 26, 2021
Measurement-based quantum computing is an alternative paradigm to the circuit-based model. This approach can be advantageous in certain scenarios, such as when read-out is fast and accurate, but two-qubit gates realized via inter-particle interaction...
Adaptive variational quantum eigensolvers for highly excited states
Feng Zhang, N. Gomes, Yongxin Yao +2 more·Apr 26, 2021
Highly excited states of quantum many-body systems are central objects in the study of quantum dynamics and thermalization that challenge classical computational methods due to their volume-law entanglement content. In this work, we explore the poten...
Classical and Quantum algorithms for generic Syndrome Decoding problems and applications to the Lee metric
A. Chailloux, Thomas Debris-Alazard, Simona Etinski·Apr 26, 2021
The security of code-based cryptography usually relies on the hardness of the syndrome decoding (SD) problem for the Hamming weight. The best generic algorithms are all improvements of an old algorithm by Prange, and they are known under the name of ...
Limits of Short-Time Evolution of Local Hamiltonians
A. Moosavian, Seyed Sajad Kahani, Salman Beigi·Apr 26, 2021
Evolutions of local Hamiltonians in short times are expected to remain local and thus limited. In this paper, we validate this intuition by proving some limitations on short-time evolutions of local time-dependent Hamiltonians. We show that the distr...
Calculating the Green’s function of two-site fermionic Hubbard model in a photonic system
Jie Zhu, Yuya O. Nakagawa, Yong-Sheng Zhang +2 more·Apr 26, 2021
The Green’s function has been an indispensable tool to study many-body systems that remain one of the biggest challenges in modern quantum physics for decades. The complicated calculation of the Green’s function impedes the research of many-body syst...
Following Forrelation - Quantum Algorithms in Exploring Boolean Functions' Spectra
Suman Dutta, S. Maitra, Chandra Sekhar Mukherjee·Apr 25, 2021
<p style='text-indent:20px;'>Here we revisit the quantum algorithms for obtaining Forrelation [Aaronson et al., 2015] values to evaluate some of the well-known cryptographically significant spectra of Boolean functions, namely the Walsh spectrum, the...
Special Session: Noisy Intermediate-Scale Quantum (NISQ) Computers—How They Work, How They Fail, How to Test Them?
Sebastian Brandhofer, S. Devitt, T. Wellens +1 more·Apr 25, 2021
First quantum computers very recently have demonstrated “quantum supremacy” or “quantum advantage Executing a computation that would have been impossible on a classical machine. Today’s quantum computers follow the NISQ paradigm: They exhibit error r...
Quantum Causal Inference in the Presence of Hidden Common Causes: an Entropic Approach
Mohammad Ali Javidian, V. Aggarwal, Z. Jacob·Apr 24, 2021
Quantum causality is an emerging field of study which has the potential to greatly advance our understanding of quantum systems. In this paper, we put forth a theoretical framework for merging quantum information science and causal inference by exploi...
Low Rank Approximation in Simulations of Quantum Algorithms
Linjian Ma, Chao Yang·Apr 23, 2021
Simulating quantum algorithms on classical computers is challenging when the system size, i.e., the number of qubits used in the quantum algorithm, is moderately large. However, some quantum algorithms and the corresponding quantum circuits can be si...
Model Checking for Verification of Quantum Circuits
M. Ying·Apr 23, 2021
In this talk, we will describe a framework for assertion-based verification (ABV) of quantum circuits by applying model checking techniques for quantum systems developed in our previous work, in which: (i) Noiseless and noisy quantum circuits are mod...
An integer factorization algorithm which uses diffusion as a computational engine
C. Cadavid, Paulina Hoyos, J. Jorgenson +2 more·Apr 23, 2021
In this article we develop an algorithm which computes a divisor of an integer $N$, which is assumed to be neither prime nor the power of a prime. The algorithm uses discrete time heat diffusion on a finite graph. If $N$ has $m$ distinct prime factor...
Single-Photon Emission from Individual Nanophotonic-Integrated Colloidal Quantum Dots
A. Eich, T. C. Spiekermann, H. Gehring +8 more·Apr 23, 2021
Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms. However, the high-yield integration of large numbers of individually addressable colloidal quantum...
Quantum speedup for track reconstruction in particle accelerators
D. Magano, Ajay Kumar, M. Kalis +10 more·Apr 23, 2021
To investigate the fundamental nature of matter and its interactions, particles are accelerated to very high energies and collided inside detectors, producing a multitude of other particles that are scattered in all directions. As charged particles t...
Probe Incompatibility in Multiparameter Noisy Quantum Metrology
F. Albarelli, R. Demkowicz-Dobrzański·Apr 22, 2021
We derive fundamental bounds on the maximal achievable precision in multiparameter noisy quantum metrology, valid under the most general entanglement-assisted adaptive strategy, which are tighter than the bounds obtained by a direct use of single-par...
Research Communities in cyber security: A Comprehensive Literature Review
Sotirios Katsikeas, Pontus Johnson, M. Ekstedt +1 more·Apr 22, 2021
In order to provide a coherent overview of cyber security research, the Scopus academic abstract and citation database was mined to create a citation graph of 98,373 authors active in the field between 1949 and early 2020. The Louvain community detec...