Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,611
This Month
65
Today
0
Research Volume
15,669 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
Concentration for random product formulas
Chi-Fang Chen, Hsin-Yuan Huang, Richard Kueng +1 more·Aug 26, 2020
Quantum simulation has wide applications in quantum chemistry and physics. Recently, scientists have begun exploring the use of randomized methods for accelerating quantum simulation. Among them, a simple and powerful technique, called qDRIFT, is kno...
Towards Building A Facial Identification System Using Quantum Machine Learning Techniques
P. Easom-Mccaldin, A. Bouridane, A. Belatreche +1 more·Aug 26, 2020
In the modern world, facial identification is an extremely important task in which many applications rely on high performing algorithms to detect faces efficiently. Whilst classical methods of SVM and k-NN commonly used may perform to a good standard...
Hybrid Quantum-Classical Eigensolver without Variation or Parametric Gates
P. Jouzdani, Stefan Bringuier·Aug 26, 2020
The use of near-term quantum devices that lack quantum error correction, for addressing quantum chemistry and physics problems, requires hybrid quantum-classical algorithms and techniques. Here, we present a process for obtaining the eigenenergy spec...
Real-time simulation of (2+1)-dimensional lattice gauge theory on qubits
A. Yamamoto·Aug 26, 2020
We study the quantum simulation of $Z_2$ lattice gauge theory in 2+1 dimensions. The dual variable formulation, the so-called Wegner duality, is utilized for reducing redundant gauge degrees of freedom. The problem of artificial charge unconservati...
Scalable and parallel tweezer gates for quantum computing with long ion strings
Tobias Olsacher, L. Postler, P. Schindler +3 more·Aug 26, 2020
Trapped-ion quantum computers have demonstrated high-performance gate operations in registers of about ten qubits. However, scaling up and parallelizing quantum computations with long one-dimensional (1D) ion strings is an outstanding challenge due t...
Multifunctional on-chip storage at telecommunication wavelength for quantum networks
I. Craiciu, Mi Lei, Jake Rochman +2 more·Aug 25, 2020
Quantum networks will enable a variety of applications, from secure communication and precision measurements to distributed quantum computing. Storing photonic qubits and controlling their frequency, bandwidth and retrieval time are important functio...
Algorithmic Error Mitigation Scheme for Current Quantum Processors
Philippe Suchsland, F. Tacchino, M. H. Fischer +3 more·Aug 25, 2020
We present a hardware agnostic error mitigation algorithm for near term quantum processors inspired by the classical Lanczos method. This technique can reduce the impact of different sources of noise at the sole cost of an increase in the number of m...
Measuring the capabilities of quantum computers
T. Proctor, K. Rudinger, K. Young +2 more·Aug 25, 2020
Quantum computers can now run interesting programs, but each processor’s capability—the set of programs that it can run successfully—is limited by hardware errors. These errors can be complicated, making it difficult to accurately predict a processor...
Fibonacci Anyons Versus Majorana Fermions: A Monte Carlo Approach to the Compilation of Braid Circuits in SU(2)k Anyon Models
Emil Génetay Johansen, T. Simula·Aug 25, 2020
We have studied ${\rm SU}(2)_k$ anyon models, assessing their prospects for topological quantum computation. In particular, we have compared the Ising ($k=2$) anyon and Fibonacci ($k=3$) anyon models, motivated by their potential for future realizati...
The compatibility dimension of quantum measurements
Faedi Loulidi, I. Nechita·Aug 24, 2020
We introduce the notion of compatibility dimension for a set of quantum measurements: it is the largest dimension of a Hilbert space on which the given measurements are compatible. In the Schr\"odinger picture, this notion corresponds to testing comp...
Real- and Imaginary-Time Evolution with Compressed Quantum Circuits
Sheng-Hsuan Lin, R. Dilip, A. Green +2 more·Aug 24, 2020
The current generation of noisy intermediate scale quantum computers introduces new opportunities to study quantum many-body systems. In this paper, we show that quantum circuits can provide a dramatically more efficient representation than current c...
Effects of higher levels of qubits on control of qubit protected by a Josephson quantum filter
S. Masuda, K. Koshino·Aug 23, 2020
A Josephson quantum filter (JQF) protects a data qubit (DQ) from the radiative decay into transmission lines (TLs) in superconducting quantum computing architectures. A transmon, which is a weakly nonlinear harmonic oscillator rather than a pure two-...
Prospects for quantum enhancement with diabatic quantum annealing
E. Crosson, Daniel A. Lidar·Aug 22, 2020
Optimization, sampling and machine learning are topics of broad interest that have inspired significant developments and new approaches in quantum computing. One such approach is quantum annealing (QA). In this Review, we assess the prospects for alg...
A variational quantum algorithm for Hamiltonian diagonalization
Jinfeng Zeng, Chenfeng Cao, Chao Zhang +2 more·Aug 22, 2020
Hamiltonian diagonalization is at the heart of understanding physical properties and practical applications of quantum systems. It is highly desired to design quantum algorithms that can speedup Hamiltonian diagonalization, especially those can be im...
Simulating 2D Effects in Lattice Gauge Theories on a Quantum Computer
D. Paulson, Luca Dellantonio, J. Haase +8 more·Aug 21, 2020
Gauge theories are the most successful theories for describing nature at its fundamental level, but obtaining analytical or numerical solutions often remains a challenge. We propose an experimental quantum simulation scheme to study ground state prop...
A Monte Carlo Tree Search Framework for Quantum Circuit Transformation
Xiang-Yu Zhou, Yuan Feng, Sanjiang Li·Aug 21, 2020
In Noisy Intermediate-Scale Quantum (NISQ) era, quantum processing units (QPUs) suffer from, among others, highly limited connectivity between physical qubits. To make a quantum circuit executable, a circuit transformation process is necessary to tra...
Quantum Fourier transform for nanoscale quantum sensing
V. Vorobyov, S. Zaiser, Nikolas Abt +4 more·Aug 21, 2020
The quantum Fourier transformation (QFT) is a key building block for a whole wealth of quantum algorithms. Despite its proven efficiency, only a few proof-of-principle demonstrations have been reported. Here we utilize QFT to enhance the performance ...
Variational quantum simulation for periodic materials
N. Yoshioka, Takeshi Sato, Yuya O. Nakagawa +2 more·Aug 21, 2020
We present a quantum-classical hybrid algorithm that simulates electronic structures of periodic systems such as ground states and quasiparticle band structures. By extending the unitary coupled cluster (UCC) theory to describe crystals in arbitrary ...
Protocol Discovery for the Quantum Control of Majoranas by Differentiable Programming and Natural Evolution Strategies
Luuk Coopmans, Di Luo, G. Kells +2 more·Aug 20, 2020
Quantum control, which refers to the active manipulation of physical systems described by the laws of quantum mechanics, constitutes an essential ingredient for the development of quantum technology. Here we apply Differentiable Programming (DP) and ...
Hybrid quantum-classical algorithms for solving quantum chemistry in Hamiltonian–wave-function space
Z. Yuan, Tao Yin, Dan-Bo Zhang·Aug 20, 2020
The variational quantum eigensolver (VQE) typically optimizes variational parameters in a quantum circuit to prepare eigenstates for a quantum system. Its application to many problems may involve a group of Hamiltonians, e.g., a Hamiltonian of a mole...