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
Fast Principal Minor Algorithms for Quantum Many Body Systems
F. vSimkovic, M. Ferrero·Apr 15, 2021
The computation of determinants plays a central role in diagrammatic Monte Carlo algorithms for strongly correlated systems. The evaluation of large numbers of determinants can often be the limiting computational factor determining the number of atta...
Quantum Oracle Separations from Complex but Easily Specified States
Nicholas Laracuente·Apr 15, 2021
A foundational question in quantum computational complexity asks how much more useful a quantum state can be in a given task than a comparable, classical string. Aaronson and Kuperberg showed such a separation in the presence of a quantum oracle, a b...
Quantum advantage and noise reduction in distributed quantum computing
J. Avron, O. Casper, Ilan Rozen·Apr 15, 2021
Distributed quantum computing can give substantial noise reduction due to shallower circuits. An experiment illustrates the advantages in the case of Grover search. This motivates studying the quantum advantage of the distributed version of the Simon...
Higgs analysis with quantum classifiers
Vasilis Belis, Samuel Gonz'alez-Castillo, C. Reissel +4 more·Apr 15, 2021
We have developed two quantum classifier models for the ttH classification problem, both of which fall into the category of hybrid quantumclassical algorithms for Noisy Intermediate Scale Quantum devices (NISQ). Our results, along with other studies,...
Quantum Architecture Search via Deep Reinforcement Learning
En-Jui Kuo, Yao-Lung L. Fang, Samuel Yen-Chi Chen·Apr 15, 2021
Recent advances in quantum computing have drawn considerable attention to building realistic application for and using quantum computers. However, designing a suitable quantum circuit architecture requires expert knowledge. For example, it is non-tri...
Improved Weak Simulation of Universal Quantum Circuits by Correlated $L_1$ Sampling
L. Kocia·Apr 15, 2021
Bounding the cost of classically simulating the outcomes of universal quantum circuits to additive error δ is often called weak simulation and is a direct way to determine when they confer a quantum advantage. Weak simulation of the T+Clifford gatese...
How to Teach a Quantum Computer a Probability Distribution
Clark Alexander·Apr 15, 2021
Currently there are three major paradigms of quantum computation, the gate model, annealing, and walks on graphs. The gate model and quantum walks on graphs are universal computation models, while annealing plays within a specific subset of scientifi...
One decade of quantum optimal control in the chopped random basis
Matthias M. Müller, R. Said, F. Jelezko +2 more·Apr 15, 2021
The chopped random basis (CRAB) ansatz for quantum optimal control has been proven to be a versatile tool to enable quantum technology applications such as quantum computing, quantum simulation, quantum sensing, and quantum communication. Its capabil...
Error rate reduction of single-qubit gates via noise-aware decomposition into native gates
Thomas J. Maldonado, Johannes Flick, Stefan Krastanov +1 more·Apr 14, 2021
In the current era of Noisy Intermediate-Scale Quantum (NISQ) technology, the practical use of quantum computers remains inhibited by our inability to aptly decouple qubits from their environment to mitigate computational errors. In this paper, we in...
Circuit quantum electrodynamics: A new look toward developing full-wave numerical models
T. Roth, W. Chew·Apr 14, 2021
Devices built using circuit quantum electrodynamics architectures are one of the most popular approaches currently being pursued to develop quantum information processing hardware. Although significant progress has been made over the previous two dec...
Fast quantum state reconstruction via accelerated non-convex programming
J. Kim, G. Kollias, A. Kalev +2 more·Apr 14, 2021
We propose a new quantum state reconstruction method that combines ideas from compressed sensing, non-convex optimization, and acceleration methods. The algorithm, called Momentum-Inspired Factored Gradient Descent (MiFGD), extends the applicability ...
A quantum convolutional neural network on NISQ devices
Shijie Wei, Yanhu Chen, Zeng-rong Zhou +1 more·Apr 14, 2021
Quantum machine learning is one of the most promising applications of quantum computing in the noisy intermediate-scale quantum (NISQ) era. We propose a quantum convolutional neural network(QCNN) inspired by convolutional neural networks (CNN), which...
Quantum PUF for Security and Trust in Quantum Computing
Koustubh Phalak, A. Saki, M. Alam +2 more·Apr 13, 2021
Quantum computing is a promising paradigm to solve computationally intractable problems. Various companies such as, IBM, Rigetti and D-Wave offer quantum computers using a cloud-based platform that possess several interesting features namely, (i) qua...
Permanent of random matrices from representation theory: moments, numerics, concentration, and comments on hardness of boson-sampling
Sepehr Nezami·Apr 13, 2021
Computing the distribution of permanents of random matrices has been an outstanding open problem for several decades. In quantum computing, “anti-concentration” of this distribution is an unproven input for the proof of hardness of the task of boson-...
Simulating a ring-like Hubbard system with a quantum computer
Philippe Suchsland, P. Barkoutsos, I. Tavernelli +2 more·Apr 13, 2021
We develop a workflow to use current quantum computing hardware for solving quantum many-body problems, using the example of the fermionic Hubbard model. Concretely, we study a four-site Hubbard ring that exhibits a transition from a product state to...
Quantum Walks, Feynman Propagators and Graph Topology on an IBM Quantum Computer
Yuan Feng, R. Miceli, M. McGuigan·Apr 13, 2021
Topological data analysis is a rapidly developing area of data science where one tries to discover topological patterns in data sets to generate insight and knowledge discovery. In this project we use quantum walk algorithms to discover features of a...
Qubit Sensing: A New Attack Model for Multi-programming Quantum Computing
A. Saki, Swaroop Ghosh·Apr 13, 2021
Noisy quantum computers suffer from readout or measurement error. It is a classical bit-flip error due to which state"1"is read out as"0"and vice-versa. The probability of readout error shows a state dependence i.e., flipping probability of state"1"m...
Qufinite ZX-calculus: a unified framework of qudit ZX-calculi
Quanlong Wang·Apr 13, 2021
ZX-calculus is graphical language for quantum computing which usually fo-cuses on qubits. In this paper, we generalise qubit ZX-calculus to qudit ZX-calculus in any finite dimension by introducing suitable generators, especially a carefully chosen tri...
Training Quantum Neural Networks on NISQ Devices
Kerstin Beer, D. List, Gabriel Muller +2 more·Apr 13, 2021
The advent of noisy intermediate-scale quantum (NISQ) devices offers crucial opportunities for the development of quantum algorithms. Here we evaluate the noise tolerance of two quantum neural network (QNN) architectures on IBM's NISQ devices, namely...
Universal quantum computation via quantum controlled classical operations
Sebastian Horvat, Xiaoqin Gao, Borivoje Daki'c·Apr 13, 2021
A universal set of gates for (classical or quantum) computation is a set of gates that can be used to approximate any other operation. It is well known that a universal set for classical computation augmented with the Hadamard gate results in univers...