Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,411
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Research Volume
15,541 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
MQT Bench: Benchmarking Software and Design Automation Tools for Quantum Computing
Nils Quetschlich, Lukas Burgholzer, R. Wille·Apr 28, 2022
Quantum software tools for a wide variety of design tasks on and across different levels of abstraction are crucial in order to eventually realize useful quantum applications. This requires practical and relevant benchmarks for new software tools to ...
Towards Quantum Ray Tracing
Luís Paulo Santos, Thomas Bashford-rogers, J. Barbosa +1 more·Apr 27, 2022
Rendering on conventional computers is capable of generating realistic imagery, but the computational complexity of these light transport algorithms is a limiting factor of image synthesis. Quantum computers have the potential to significantly improv...
Quantum Linear Optics via String Diagrams
G. Felice, B. Coecke·Apr 27, 2022
We establish a formal bridge between qubit-based and photonic quantum computing. We do this by defining a functor from the ZX calculus to linear optical circuits. In the process we provide a compositional theory of quantum linear optics which allows ...
Quantum Compressive Sensing: Mathematical Machinery, Quantum Algorithms, and Quantum Circuitry
Kyle Sherbert, Naveed Naimipour, H. Safavi +2 more·Apr 27, 2022
Compressive sensing is a sensing protocol that facilitates the reconstruction of large signals from relatively few measurements by exploiting known structures of signals of interest, typically manifested as signal sparsity. Compressive sensing’s vast...
Reducing Number of Gates in Quantum Random Walk Search Algorithm via Modification of Coin Operators
Hristo Tonchev, Petar Danev·Apr 27, 2022
This paper examines a way to simplify the circuit of quantum random walk search algorithm, when the traversing coin is constructed by both generalized Householder reflection and an additional phase multiplier. If an appropriate relation between corre...
Wafer-scale nanofabrication of telecom single-photon emitters in silicon
M. Hollenbach, N. Klingner, Nagesh S. Jagtap +9 more·Apr 27, 2022
A highly promising route to scale millions of qubits is to use quantum photonic integrated circuits (PICs), where deterministic photon sources, reconfigurable optical elements, and single-photon detectors are monolithically integrated on the same sil...
Quantum-classical convolutional neural networks in radiological image classification
A. Matic, Maureen Monnet, J. Lorenz +2 more·Apr 26, 2022
Quantum machine learning is receiving significant attention currently, but its usefulness in comparison to classical machine learning techniques for practical applications remains unclear. However, there are indications that certain quantum machine l...
Towards compact phase-matched and waveguided nonlinear optics in atomically layered semiconductors
Xinyi Xu, C. Trovatello, F. Mooshammer +6 more·Apr 26, 2022
Nonlinear frequency conversion provides essential tools for generating new colors and quantum states of light. Transition metal dichalcogenides possess huge nonlinear susceptibilities; further, 3R-stacked transition metal dichalcogenide crystals poss...
Complexity of Quantum Circuits via Sensitivity, Magic, and Coherence
Kaifeng Bu, Roy J. Garcia, A. Jaffe +2 more·Apr 26, 2022
Quantum circuit complexity—a measure of the minimum number of gates needed to implement a given unitary transformation—is a fundamental concept in quantum computation, with widespread applications ranging from determining the running time of quantum ...
Quantum error mitigation by hidden inverses protocol in superconducting quantum devices
Vicente Leyton-Ortega, Swarnadeep Majumder, R. Pooser·Apr 26, 2022
We present a method to improve the convergence of variational algorithms based on hidden inverses (HIs) to mitigate coherent errors. In the context of error mitigation, this means replacing the hardware implementation of certain Hermitian gates with ...
Reinforcement-learning generation of four-qubit entangled states
Sara Giordano, M. Martin-Delgado·Apr 26, 2022
We have devised an artificial intelligence algorithm with machine reinforcement learning (Q-learning) to construct remarkable entangled states with 4 qubits. This way, the algorithm is able to generate representative states for some of the 49 true SL...
On converses to the polynomial method
J. Briët, F. Guti'errez·Apr 26, 2022
A surprising 'converse to the polynomial method' of Aaronson et al. (CCC'16) shows that any bounded quadratic polynomial can be computed exactly in expectation by a 1-query algorithm up to a universal multiplicative factor related to the famous Groth...
Qunity: A Unified Language for Quantum and Classical Computing
Finn Voichick, Robert Rand, M. Hicks·Apr 26, 2022
We introduce Qunity, a new quantum programming language designed to treat quantum computing as a natural generalization of classical computing. Qunity presents a unified syntax where familiar programming constructs can have both quantum and classical...
Universal compilation for quantum state preparation and tomography
V. Hai, Le Bin Ho·Apr 25, 2022
Universal compilation is a training process that compiles a trainable unitary into a target unitary and it serves vast potential applications from quantum dynamic simulations to optimal circuits with deep-compressing, device benchmarking, quantum err...
Hybrid controlled-sum gate with one superconducting qutrit and one cat-state qutrit and application in hybrid entangled state preparation
Qi-Ping Su, Yu Zhang, Liang Bin +1 more·Apr 25, 2022
Compared with a qubit, a qudit (i.e., d -level or d -state quantum system) provides a larger Hilbert space to store and process information. On the other hand, qudit-based hybrid quantum computing usually requires performing hybrid quantum gates with...
A quantum Fourier transform (QFT) based note detection algorithm
Shlomo Kashani, Maryam Alqasemi, Jacob Hammond·Apr 25, 2022
In quantum information processing (QIP), the quantum Fourier transform (QFT) has a plethora of applications [1] [2] [3]: Shor’s algorithm and phase estimation are just a few well-known examples. Shor’s quantum factorization algorithm, one of the most...
Quantum polar stabilizer codes based on polarization of pure quantum channel don't work for quantum computing
Zhengzhong Yi, Z.-H. Liang, Yulin Wu +1 more·Apr 25, 2022
Inspired by classical polar codes, whose coding rate can asymptotically achieve the Shannon capacity, researchers are trying to find its analogue in quantum information field, which are called quantum polar codes. However, no one has designed a quant...
Distributed quantum algorithm for Simon's problem
J. Tan, Li Xiao, Daowen Qiu +2 more·Apr 25, 2022
Limited by today’s physical devices, quantum circuits are usually noisy and difficult to be designed deeply. The novel computing architecture of distributed quantum computing is expected to reduce the noise and depth of quantum circuits. In this paper,...
Travel time optimization on multi-AGV routing by reverse annealing
Renichiro Haba, Masayuki Ohzeki, Kazuyuki Tanaka·Apr 25, 2022
Quantum annealing has been actively researched since D-Wave Systems produced the first commercial machine in 2011. Controlling a large fleet of automated guided vehicles is one of the real-world applications utilizing quantum annealing. In this study...
Superdiffusive quantum work and adiabatic quantum evolution in finite temperature chaotic Fermi systems
András Grabarits, M. Kormos, I. Lovas +1 more·Apr 25, 2022
We study the full distribution of quantum work in generic, noninteracting, disordered fermionic nanosystems at finite temperature. We derive an analytical determinant formula for the characteristic function of work statistics for quantum quenches sta...