Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,685 papers in 12 months (-39% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum cluster algorithm for data classification
Junxu Li, S. Kais·Jun 13, 2021
We present a quantum algorithm for data classification based on the nearest-neighbor learning algorithm. The classification algorithm is divided into two steps: Firstly, data in the same class is divided into smaller groups with sublabels assisting b...
The role of localizable concurrence in quantum teleportation protocols
M. Consiglio, L. Z. Mangion, T. Apollaro·Jun 12, 2021
Teleporting an unknown qubit state is a paradigmatic quantum information processing task revealing the advantage of quantum communication protocols over their classical counterpart. For a teleportation protocol using a Bell state as quantum channel, ...
Quantum algorithm for Gaussian process regression
Menghan Chen, Gongde Guo, Song Lin +1 more·Jun 12, 2021
In this paper, a quantum algorithm based on gaussian process regression model is proposed. The proposed quantum algorithm consists of three sub-algorithms. One is the first quantum subalgorithm to efficiently generate mean predictor. The improved HHL...
Quantum coherence, correlations and nonclassical states in the two-qubit Rabi model with parametric oscillator
V. Yogesh, Prosenjit Maity·Jun 12, 2021
Quantum coherence and quantum correlations are studied in the strongly interacting system composed of two qubits and an oscillator with the presence of a parametric medium. To analytically solve the system, we employ the adiabatic approximation appro...
Quantum Algorithms and Simulation for Parallel and Distributed Quantum Computing
Rhea Parekh, Andrea Ricciardi, Ahmed Darwish +1 more·Jun 12, 2021
A viable approach for building large-scale quantum computers is to interlink small-scale quantum computers with a quantum network to create a larger distributed quantum computer. When designing quantum algorithms for such a distributed quantum comput...
Universal terms of the entanglement entropy in a static closed universe
Rodolfo Reis Soldati, L. Menicucci, N. Yokomizo·Jun 12, 2021
Subdominant contributions to the entanglement entropy of quantum fields include logarithmic corrections to the area law characterized by universal coefficients that are independent of the ultraviolet regulator and capture detailed information on the ...
Defect-Free Arbitrary-Geometry Assembly of Mixed-Species Atom Arrays.
Cheng Sheng, Jiayi Hou, Xiaodong He +8 more·Jun 11, 2021
Optically trapped mixed-species single atom arrays with arbitrary geometry are an attractive and promising platform for various applications, because tunable quantum systems with multiple components provide extra degrees of freedom for experimental c...
Optimal Qubit Assignment and Routing via Integer Programming
G. Nannicini, L. Bishop, O. Günlük +1 more·Jun 11, 2021
We consider the problem of mapping a logical quantum circuit onto a given hardware with limited 2-qubit connectivity. We model this problem as an integer linear program, using a network flow formulation with binary variables that includes the initial...
A practical guide for building superconducting quantum devices
Yvonne Y Gao, M. A. Rol, S. Touzard +1 more·Jun 11, 2021
Quantum computing offers a powerful new paradigm of information processing that has the potential to transform a wide range of industries. In the pursuit of the tantalizing promises of a universal quantum computer, a multitude of new knowledge and ex...
Quantum Architecture Search with Meta‐Learning
Zhimin He, Chuangtao Chen, Lvzhou Li +2 more·Jun 11, 2021
Variational quantum algorithms (VQAs) have been successfully applied to quantum approximate optimization algorithms, variational quantum compiling and quantum machine learning models. The performances of VQAs largely depend on the architecture of par...
Programming the full stack of an open-access quantum computer
V. Frey, R. Rademacher, Elijah Durso-Sabina +5 more·Jun 11, 2021
We present a new quantum programming language called"Quala"that enables true full-stack programming of quantum hardware. Quala allows seamless integration of abstraction layers such as the digital circuit layer and the analog control pulse waveform l...
Entanglement-based quantum communication complexity beyond Bell nonlocality
Joseph Ho, George Moreno, S. Brito +8 more·Jun 11, 2021
Efficient distributed computing offers a scalable strategy for solving resource-demanding tasks, such as parallel computation and circuit optimisation. Crucially, the communication overhead introduced by the allotment process should be minimised—a ke...
Quantum Computing for Location Determination
A. Shokry, M. Youssef·Jun 11, 2021
Quantum computing provides a new way for approaching problem solving, enabling efficient solutions for problems that are hard on classical computers. It is based on leveraging how quantum particles behave. With researchers around the world showing qu...
Rotation Based Slice Error Correction Protocol for Continuous-variable Quantum Key Distribution and its Implementation with Polar Codes
Xuan Wen, Qiong Li, Haokun Mao +2 more·Jun 11, 2021
Reconciliation is an essential procedure for continuous-variable quantum key distribution (CV-QKD). As the most commonly used reconciliation protocol in short-distance CV-QKD, the slice error correction (SEC) allows a system to distill more than 1 bi...
On Applying the Lackadaisical Quantum Walk Algorithm to Search for Multiple Solutions on Grids
J. Carvalho, L. Souza, F. M. P. Neto +1 more·Jun 11, 2021
Quantum computing promises to improve the information processing power to levels unreachable by classical computation. Quantum walks are heading the development of quantum algorithms for searching information on graphs more efficiently than their cla...
Duality approach to quantum annealing of the 3-XORSAT problem
R. Medina, Maksym Serbyn·Jun 11, 2021
Classical models with complex energy landscapes represent a perspective avenue for the near-term application of quantum simulators. Until now, many theoretical works studied the performance of quantum algorithms for models with a unique ground state....
Matrix product state pre-training for quantum machine learning
J. Dborin, F. Barratt, V. Wimalaweera +2 more·Jun 10, 2021
Hybrid quantum–classical algorithms are a promising candidate for developing uses for NISQ devices. In particular, parametrised quantum circuits (PQCs) paired with classical optimizers have been used as a basis for quantum chemistry and quantum optim...
Material matters in superconducting qubits
C. Murray·Jun 10, 2021
The progress witnessed within the field of quantum computing has been enabled by the identification and understanding of interactions between the state of the quantum bit (qubit) and the materials within its environment. Beginning with an introductio...
A quantum-inspired approach to exploit turbulence structures
Nikita Gourianov, M. Lubasch, S. Dolgov +5 more·Jun 10, 2021
Understanding turbulence is key to our comprehension of many natural and technological flow processes. At the heart of this phenomenon lies its intricate multiscale nature, describing the coupling between different-sized eddies in space and time. Her...
Classical algorithms and quantum limitations for maximum cut on high-girth graphs
B. Barak, Kunal Marwaha·Jun 10, 2021
We study the performance of local quantum algorithms such as the Quantum Approximate Optimization Algorithm (QAOA) for the maximum cut problem, and their relationship to that of classical algorithms. (1) We prove that every (quantum or classical) one...