Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,015 papers in 12 months (-3% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Compiler Design for Distributed Quantum Computing
Davide Ferrari, A. Cacciapuoti, M. Amoretti +1 more·Dec 17, 2020
In distributed quantum computing architectures, with the network and communications functionalities provided by the Quantum Internet, remote quantum processing units can communicate and cooperate for executing computational tasks that single, noisy, ...
Programmable Quantum Annealers as Noisy Gibbs Samplers
Marc Vuffray, Carleton Coffrin, Y. Kharkov +1 more·Dec 16, 2020
Drawing independent samples from high-dimensional probability distributions represents the major computational bottleneck for modern algorithms, including powerful machine learning frameworks such as deep learning. The quest for discovering larger fa...
Efficient entanglement generation and detection of generalized stabilizer states
Yihong Zhang, Yifan Tang, You Zhou +1 more·Dec 14, 2020
The generation and verification of large-scale entanglement are essential to the development of quantum technologies. In this work, we present an efficient scheme to generate genuine multipartite entanglement of a large number of qubits, by using the...
Learning from Physics Experiments with Quantum Computers: Applications in Muon Spectroscopy
Sam McArdle·Dec 11, 2020
Computational physics is an important tool for analysing, verifying, and -- at times -- replacing physical experiments. Nevertheless, simulating quantum systems and analysing quantum data has so far resisted an efficient classical treatment in full g...
Correlated charge noise and relaxation errors in superconducting qubits
C. Wilen, S. Abdullah, N. Kurinsky +19 more·Dec 10, 2020
The central challenge in building a quantum computer is error correction. Unlike classical bits, which are susceptible to only one type of error, quantum bits (qubits) are susceptible to two types of error, corresponding to flips of the qubit state a...
Quantum Technology for Economists
Isaiah Hull, Or Sattath, E. Diamanti +1 more·Dec 8, 2020
Research on quantum technology spans multiple disciplines: physics, computer science, engineering, and mathematics. The objective of this manuscript is to provide an accessible introduction to this emerging field for economists that is centered aroun...
Variational preparation of finite-temperature states on a quantum computer
R. Sagastizabal, S. Premaratne, B. Klaver +13 more·Dec 7, 2020
The preparation of thermal equilibrium states is important for the simulation of condensed matter and cosmology systems using a quantum computer. We present a method to prepare such mixed states with unitary operators and demonstrate this technique e...
Quantum Internet: The Future of Internetworking
A. Abelém, D. Towsley, Gayane Vardoyan·Dec 7, 2020
Quantum information, computation and communication, will have a great impact on our world. One important subfield will be quantum networking and the quantum Internet. The purpose of a quantum Internet is to enable applications that are fundamentally ...
A game of quantum advantage: linking verification and simulation
Daniel Stilck França, R. García-Patrón·Nov 24, 2020
We present a formalism that captures the process of proving quantum superiority to skeptics as an interactive game between two agents, supervised by a referee. Bob, is sampling from a classical distribution on a quantum device that is supposed to dem...
Focus beyond Quadratic Speedups for Error-Corrected Quantum Advantage
R. Babbush, J. McClean, M. Newman +3 more·Nov 9, 2020
We discuss conditions under which it would be possible for a modest fault-tolerant quantum computer to realize a runtime advantage by executing a quantum algorithm with only a small polynomial speedup over the best classical alternative. The challeng...
Optimizing entanglement generation and distribution using genetic algorithms
Francisco Ferreira da Silva, A. Torres-Knoop, T. Coopmans +2 more·Oct 30, 2020
Long-distance quantum communication via entanglement distribution is of great importance for the quantum internet. However, scaling up to such long distances has proved challenging due to the loss of photons, which grows exponentially with the distan...
Nonlinear signal distortion corrections through quantum sensing
K. Chaves, Xian Wu, Y. Rosen +1 more·Oct 27, 2020
Having accurate gate generation is essential for precise control of a quantum system. The generated gate usually suffers from linear and nonlinear distortion. Previous works have demonstrated how to use a qubit to correct linear frequency distortions...
Generation and storage of spin squeezing via learning-assisted optimal control
Q. Tan, Mao Zhang, Yu Chen +2 more·Oct 26, 2020
The generation and storage of spin squeezing is an attractive topic in quantum metrology and the foundation of quantum mechanics. The major models to realize the spin squeezing are the one- and two-axis twisting models. Here, we consider a collective...
Optimal State Transfer and Entanglement Generation in Power-Law Interacting Systems
Minh C. Tran, Andrew Y. Guo, A. Deshpande +2 more·Oct 6, 2020
We present an optimal protocol for encoding an unknown qubit state into a multiqubit Greenberger-Horne-Zeilinger-like state and, consequently, transferring quantum information in large systems exhibiting power-law (1/rα) interactions. For all power-l...
Preparation of excited states for nuclear dynamics on a quantum computer
A. Roggero, C. Gu, A. Baroni +1 more·Sep 28, 2020
We study two different methods to prepare excited states on a quantum computer, a key initial step to study dynamics within linear response theory. The first method uses unitary evolution for a short time $T=\mathcal{O}(\sqrt{1-F})$ to approximate th...
Performance benefits of increased qubit connectivity in quantum annealing 3-dimensional spin glasses.
A. King, William Bernoudy·Sep 26, 2020
An important challenge in superconducting quantum computing is the need to physically couple many devices using quasi-two-dimensional fabrication processes. Recent advances in the design and fabrication of quantum annealing processors have enabled an...
Quantum teleportation of physical qubits into logical code spaces
Yi-Han Luo, Ming-Cheng Chen, Manuel Erhard +13 more·Sep 14, 2020
Significance Quantum teleportation and quantum error correction play crucial roles in fault-tolerant quantum computing. Here, we implemented error-correctable quantum teleportation to manipulate a logical qubit and observed the protection of quantum ...
Evolutionary Computation for Adaptive Quantum Device Design
Luke Mortimer, M. Estarellas, T. Spiller +1 more·Sep 3, 2020
As noisy intermediate‐scale quantum (NISQ) devices grow in number of qubits, determining good or even adequate parameter configurations for a given application, or for device calibration, becomes a cumbersome task. An evolutionary algorithm is presen...
A hybrid quantum-classical conditional generative adversarial network algorithm for human-centered paradigm in cloud
Wenjie Liu, Ying Zhang, Zhiliang Deng +2 more·Sep 3, 2020
As an emerging field that aims to bridge the gap between human activities and computing systems, human-centered computing (HCC) in cloud, edge, fog has had a huge impact on the artificial intelligence algorithms. The quantum generative adversarial ne...
Classical variational simulation of the Quantum Approximate Optimization Algorithm
Matija Medvidović, Giuseppe Carleo·Sep 3, 2020
A key open question in quantum computing is whether quantum algorithms can potentially offer a significant advantage over classical algorithms for tasks of practical interest. Understanding the limits of classical computing in simulating quantum syst...