Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,522 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Slowing down light in a qubit metamaterial
J. Brehm, R. Gebauer, A. Stehli +4 more·Feb 14, 2022
The rapid progress in quantum information processing leads to a rising demand for devices to control the propagation of electromagnetic wave pulses and to ultimately realize universal and efficient quantum memory. While in recent years, significant p...
Ultra-low loss quantum photonic circuits integrated with single quantum emitters
Ashish Chanana, Hugo Larocque, R. Moreira +9 more·Feb 9, 2022
The scaling of many photonic quantum information processing systems is ultimately limited by the flux of quantum light throughout an integrated photonic circuit. Source brightness and waveguide loss set basic limits on the on-chip photon flux. While ...
QAC: Quantum-computing Aided Composition
Omar Costa Hamido·Feb 9, 2022
In this chapter I will discuss the role of quantum computing in computer music and how it can be integrated to better serve the creative artists. I will start by considering different approaches in current computer music and quantum computing tools, ...
An Evolutionary Pathway for the Quantum Internet Relying on Secure Classical Repeaters
G. Long, Dong Pan, Yu‐Bo Sheng +3 more·Feb 8, 2022
Until quantum repeaters become mature, quantum networks remain restricted either to limited areas of directly connected nodes or to nodes connected to a common node. We circumvent this limitation by conceiving quantum networks using secure classical ...
Beware of Greeks bearing entanglement? Quantum covert channels, information flow and non-local games
David Mestel·Feb 4, 2022
Can quantum entanglement increase the capacity of (classical) covert channels? To one familiar with Holevo's Theorem it is tempting to think that the answer is obviously no. However, in this work we show: quantum entanglement can in fact increase the...
From quantum speed limits to energy-efficient quantum gates
Maxwell Aifer, Sebastian Deffner·Feb 3, 2022
While recent breakthroughs in quantum computing promise the nascence of the quantum information age, quantum states remain delicate to control. Moreover, the required energy budget for large scale quantum applications has only sparely been considered...
Tweezer-programmable 2D quantum walks in a Hubbard-regime lattice
A. Young, William J. Eckner, N. Schine +2 more·Feb 2, 2022
Quantum walks provide a framework for designing quantum algorithms that is both intuitive and universal. To leverage the computational power of these walks, it is important to be able to programmably modify the graph a walker traverses while maintain...
Pauli Error Propagation-Based Gate Rescheduling for Quantum Circuit Error Mitigation
V. Saravanan, S. Saeed·Jan 31, 2022
Noisy intermediate-scale quantum algorithms, which run on noisy quantum computers, should be carefully designed to boost the output state fidelity. While several compilation approaches have been proposed to minimize circuit errors, they often omit th...
Harmonic flow-field representations of quantum bits and gates
Vishal P. Patil, Žiga Kos, Jörn Dunkel·Jan 30, 2022
We describe a general procedure for mapping arbitrary n-qubit states to two-dimensional (2D) vector fields. The mappings use complex rational function representations of individual qubits, producing classical vector field configurations that can be i...
Quantum Reservoir Computing for Speckle Disorder Potentials
Pere Mujal·Jan 26, 2022
Quantum reservoir computing is a machine learning approach designed to exploit the dynamics of quantum systems with memory to process information. As an advantage, it presents the possibility to benefit from the quantum resources provided by the rese...
Implementation of quantum compression on IBM quantum computers
Matej Pivoluska, Martin Plesch·Jan 26, 2022
Advances in development of quantum computing processors brought ample opportunities to test the performance of various quantum algorithms with practical implementations. In this paper we report on implementations of quantum compression algorithm that...
Fundamentals of Quantum Fourier Optics
Mohammad Rezai, J. Salehi·Jan 24, 2022
All-quantum signal processing techniques are at the core of the successful advancement of most information-based quantum technologies. This article develops coherent and comprehensive methodologies and mathematical models to describe Fourier optical ...
Quantum error correction with silicon spin qubits
K. Takeda, A. Noiri, T. Nakajima +2 more·Jan 21, 2022
Future large-scale quantum computers will rely on quantum error correction (QEC) to protect the fragile quantum information during computation1,2. Among the possible candidate platforms for realizing quantum computing devices, the compatibility with ...
The optimization landscape of hybrid quantum-classical algorithms: From quantum control to NISQ applications
Xiaozhen Ge, R. Wu, H. Rabitz·Jan 19, 2022
This review investigates the landscapes of hybrid quantum-classical optimization algorithms that are prevalent in many rapidly developing quantum technologies, where the objective function is computed by either a natural quantum system or an engineer...
Computing with two quantum reservoirs connected via optimized two-qubit nonselective measurements
S. Vintskevich, D. Grigoriev·Jan 18, 2022
We propose a novel approach to link multipartite quantum systems - quantum reservoirs into a network to implement quantum reservoir computing. We present the machine learning-based heuristics to optimize performance and information transfer between s...
Fast quantum state transfer and entanglement for cavity-coupled many qubits via dark pathways
Yi-Xuan Wu, Ziwei Guan, Sai Li +1 more·Jan 18, 2022
Quantum state transfer (QST) and entangled state generation (ESG) are important building blocks for modern quantum information processing. To achieve these tasks, convention wisdom is to consult the quantum adiabatic evolution, which is time-consumin...
Localization for magnetic quantum walks
Fan Yang·Jan 15, 2022
Quantum walk was first proposed by Aharonov, Davidovich and Zagury [1]. It can be viewed as a quantum mechanical analogue of the classical random walk. Compared to the diffusive transport in the classical random walk, quantum walk leads to a ballisti...
Towards Quantum Graph Neural Networks: An Ego-Graph Learning Approach
Xing Ai, Zhihong Zhang, Luzhe Sun +2 more·Jan 13, 2022
Quantum machine learning is a fast-emerging field that aims to tackle machine learning using quantum algorithms and quantum computing. Due to the lack of physical qubits and an effective means to map real-world data from Euclidean space to Hilbert sp...
Error-robust quantum signal processing using Rydberg atoms
Sina Zeytinouglu, S. Sugiura·Jan 12, 2022
Rydberg atom arrays have recently emerged as one of the most promising platforms for quantum simulation and quantum information processing. However, as is the case for other experimental platforms, the longer-term success of the Rydberg atom arrays i...
Implementation of a digitally encoded multigrid algorithm on a quantum computer
P. Jaksch·Jan 12, 2022
Multigrid has become a popular method for solving some of the most challenging real-world computational problems, such as computational fluid dynamics (CFD). The reason for this is the very good scaling properties of multigrid, which is often linear,...