Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,188
This Month
0
Today
0
Research Volume
13,354 papers in 12 months (+7% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
On connectivity-dependent resource requirements for digital quantum simulation of d-level particles
Nicolas P. D. Sawaya, G. Guerreschi, Adam Holmes·May 26, 2020
A primary objective of quantum computation is to efficiently simulate quantum physics. Scientifically and technologically important quantum Hamiltonians include those with spin-s, vibrational, photonic, and other bosonic degrees of freedom, i.e. prob...
Variability and Fidelity Limits of Silicon Quantum Gates Due to Random Interface Charge Traps
Tong Wu, Jing Guo·May 25, 2020
Silicon offers an attractive material platform for hardware realization of quantum computing. In this study, a microscopic stochastic simulation method is developed to model the effect of random interface charge traps in silicon metal-oxide-semicondu...
Fault-tolerant quantum speedup from constant depth quantum circuits
R. Mezher, J. Ghalbouni, J. Dgheim +1 more·May 23, 2020
A defining feature in the field of quantum computing is the potential of a quantum device to outperform its classical counterpart for a specific computational task. By now, several proposals exist showing that certain sampling problems can be done ef...
Complexity of Fermionic Dissipative Interactions and Applications to Quantum Computing
O. Shtanko, A. Deshpande, P. Julienne +1 more·May 21, 2020
Interactions between particles are usually a resource for quantum computing, making quantum many-body systems intractable by any known classical algorithm. In contrast, noise is typically considered as being inimical to quantum many-body correlations...
An adaptive quantum approximate optimization algorithm for solving combinatorial problems on a quantum computer
Linghua Zhu, Ho Lun Tang, George S. Barron +4 more·May 20, 2020
The quantum approximate optimization algorithm (QAOA) is a hybrid variational quantum-classical algorithm that solves combinatorial optimization problems. While there is evidence suggesting that the fixed form of the original QAOA ansatz is not optim...
Measuring Analytic Gradients of General Quantum Evolution with the Stochastic Parameter Shift Rule
L. Banchi, G. Crooks·May 20, 2020
Hybrid quantum-classical optimization algorithms represent one of the most promising application for near-term quantum computers. In these algorithms the goal is to optimize an observable quantity with respect to some classical parameters, using feed...
Implementation of Conditional Phase Gates Based on Tunable ZZ Interactions.
M. Collodo, J. Herrmann, N. Lacroix +7 more·May 18, 2020
High fidelity two-qubit gates exhibiting low cross talk are essential building blocks for gate-based quantum information processing. In superconducting circuits, two-qubit gates are typically based either on rf-controlled interactions or on the in si...
Teaching quantum information science to high-school and early undergraduate students
S. Economou, T. Rudolph, Edwin Barnes·May 16, 2020
We present a simple, accessible, yet rigorous outreach/educational program focused on quantum information science and technology for high-school and early undergraduate students. This program allows students to perform meaningful hands-on calculation...
Learning-Based Quantum Error Mitigation
Armands Strikis, Dayue Qin, Yanzhu Chen +2 more·May 15, 2020
If NISQ-era quantum computers are to perform useful tasks, they will need to employ powerful error mitigation techniques. Quasi-probability methods can permit perfect error compensation at the cost of additional circuit executions, provided that the ...
Resource requirements for efficient quantum communication using all-photonic graph states generated from a few matter qubits
P. Hilaire, Edwin Barnes, S. Economou·May 14, 2020
Quantum communication technologies show great promise for applications ranging from the secure transmission of secret messages to distributed quantum computing. Due to fiber losses, long-distance quantum communication requires the use of quantum repe...
Semiconductor qubits in practice
A. Chatterjee, Paul Stevenson, S. de Franceschi +3 more·May 13, 2020
In the past decade, semiconducting qubits have made great strides in overcoming decoherence, improving the prospects for scalability and have become one of the leading contenders for the development of large-scale quantum circuits. In this Review, we...
Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform
M. Ganzhorn, G. Salis, D. Egger +8 more·May 12, 2020
The possibility to utilize different types of two-qubit gates on a single quantum computing platform adds flexibility in the decomposition of quantum algorithms. A larger hardware-native gate set may decrease the number of required gates, provided th...
Benchmarking Coherent Errors in Controlled-Phase Gates due to Spectator Qubits
S. Krinner, S. Lazăr, A. Remm +7 more·May 12, 2020
A major challenge in operating multi-qubit quantum processors is to mitigate multi-qubit coherent errors. For superconducting circuits, besides crosstalk originating from imperfect isolation of control lines, dispersive coupling between qubits is a m...
Cost-optimal single-qubit gate synthesis in the Clifford hierarchy
Gary J. Mooney, C. Hill, L. Hollenberg·May 12, 2020
For universal quantum computation, a major challenge to overcome for practical implementation is the large amount of resources required for fault-tolerant quantum information processing. An important aspect is implementing arbitrary unitary operators...
Improving the Performance of Deep Quantum Optimization Algorithms with Continuous Gate Sets
N. Lacroix, C. Hellings, C. K. Andersen +10 more·May 11, 2020
Variational quantum algorithms are believed to be promising for solving computationally hard problems and are often comprised of repeated layers of quantum gates. An example thereof is the quantum approximate optimization algorithm (QAOA), an approac...
Spoofing Linear Cross-Entropy Benchmarking in Shallow Quantum Circuits
B. Barak, Chi-Ning Chou, Xun Gao·May 5, 2020
The linear cross-entropy benchmark (Linear XEB) has been used as a test for procedures simulating quantum circuits. Given a quantum circuit $C$ with $n$ inputs and outputs and purported simulator whose output is distributed according to a distributio...
Creating and Manipulating a Laughlin-Type ν=1/3 Fractional Quantum Hall State on a Quantum Computer with Linear Depth Circuits
Armin Rahmani, Kevin J Sung, Harald Putterman +3 more·May 5, 2020
Here we present an efficient quantum algorithm to generate an equivalent many-body state to Laughlin's $\nu=1/3$ fractional quantum Hall state on a digitized quantum computer. Our algorithm only uses quantum gates acting on neighboring qubits in a qu...
Generalization of CNOT-based Discrete Circular Quantum Walk: Simulation and Effect of Gate Errors
Iyed Ben Slimen, A. Gueddana, V. Lakshminarayanan·May 5, 2020
We investigate the counterparts of random walk in universal quantum computing and their implementation using standard quantum circuits. Quantum walk have been recently well investigated for traversing graphs with certain oracles. We focus our study o...
Boundaries of quantum supremacy via random circuit sampling
Alexander Zlokapa, B. Villalonga, S. Boixo +1 more·May 5, 2020
Google’s quantum supremacy experiment heralded a transition point where quantum computers can evaluate a computational task, random circuit sampling, faster than classical supercomputers. We examine the constraints on the region of quantum advantage ...
Neuromorphic quantum computing.
Christian Pehle, C. Wetterich·May 4, 2020
Quantum computation builds on the use of correlations. Correlations could also play a central role for artificial intelligence, neuromorphic computing or "biological computing." As a step toward a systematic exploration of "correlated computing" we d...