Papers
Live trends in quantum computing research, updated daily from arXiv.
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31,204
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15,356 papers in 12 months (-8% 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
Testing randomness of series generated in an optical Bell's experiment.
M. Nonaka, M. Agüero, M. Kovalsky +1 more·Aug 31, 2022
The generation of series of random numbers is an important and difficult problem. Appropriate measurements on entangled states have been proposed as the definitive solution to produce series of certified randomness, and quantum optical systems play a...
Modified Iterative Quantum Amplitude Estimation is Asymptotically Optimal
Shion Fukuzawa, C. Ho, S. Irani +1 more·Aug 31, 2022
In this work, we provide the first QFT-free algorithm for Quantum Amplitude Estimation (QAE) that is asymptotically optimal while maintaining the leading numerical performance. QAE algorithms appear as a subroutine in many applications for quantum co...
Cycle index polynomials and generalized quantum separability tests
Zachary P. Bradshaw, Margarite L. LaBorde, M. Wilde·Aug 31, 2022
The mixedness of one share of a pure bipartite state determines whether the overall state is a separable, unentangled one. Here we consider quantum computational tests of mixedness, and we derive an exact expression of the acceptance probability of s...
Optimization of heterogeneously integrated InP-Si on-chip photonic components.
P. Mrowiński, P. Holewa, A. Sakanas +3 more·Aug 31, 2022
We demonstrate comprehensive numerical studies on a hybrid III-V/Si-based waveguide system, serving as a platform for efficient light coupling between an integrated III-V quantum dot emitter to an on-chip quantum photonic integrated circuit defined o...
Measurement optimization of variational quantum simulation by classical shadow and derandomization
Kouhei Nakaji, Suguru Endo, Y. Matsuzaki +1 more·Aug 30, 2022
Simulating large quantum systems is the ultimate goal of quantum computing. Variational quantum simulation (VQS) gives us a tool to achieve the goal in near-term devices by distributing the computation load to both classical and quantum computers. Ho...
Programmable photonic integrated meshes for modular generation of optical entanglement links
M. Dong, Matthew Zimmermann, David Heim +9 more·Aug 30, 2022
Large-scale generation of quantum entanglement between individually controllable qubits is at the core of quantum computing, communications, and sensing. Modular architectures of remotely-connected quantum technologies have been proposed for a variet...
Native measurement-based quantum approximate optimization algorithm applied to the Max K -Cut problem
Massimiliano Proietti, Filippo Cerocchi, M. Dispenza·Aug 30, 2022
Photonic quantum computers, programmed within the framework of the measurement-based quantum computing (MBQC), currently concur with gate-based platforms in the race towards useful quantum advantage, and some algorithms emerged as main candidates to ...
Optimizing the number of CNOT gates in one-dimensional nearest-neighbor quantum Fourier transform circuit
Byeongyong Park, Doyeol Ahn Department of Electrical, Computer Engineering +9 more·Aug 30, 2022
: The physical limitations of quantum hardware often require nearest-neighbor qubit structures, in which two-qubit gates are required to construct nearest-neighbor quantum circuits. However, two-qubit gates are considered a major cost of quantum circ...
Advance quantum image representation and compression using DCTEFRQI approach
Md. Ershadul Haque, Manoranjon Paul, A. Ulhaq +1 more·Aug 30, 2022
In recent year, quantum image processing got a lot of attention in the field of image processing due to opportunity to place huge image data in quantum Hilbert space. Hilbert space or Euclidean space has infinite dimension to locate and process the i...
Improving the Accuracy of Variational Quantum Eigensolvers with Fewer Qubits Using Orbital Optimization.
Joel Bierman, Yingzhou Li, Jianfeng Lu·Aug 30, 2022
Near-term quantum computers will be limited in the number of qubits on which they can process information as well as the depth of the circuits that they can coherently carry out. To date, experimental demonstrations of algorithms such as the Variatio...
Robust Quantum Control: Analysis & Synthesis via Averaging
R. Kosut, Gaurav Bhole, H. Rabitz·Aug 30, 2022
An approach is presented for robustness analysis and quantum (unitary) control synthesis based on the classic method of averaging. The result is a multicriterion optimization competing the nominal (uncertainty-free) fidelity with a well known robustn...
Hot band sound
Vir B. Bulchandani, David A. Huse·Aug 29, 2022
Chaotic lattice models at high temperature are generically expected to exhibit diffusive transport of all local conserved charges. Such diffusive transport is usually associated with overdamped relaxation of the associated currents. Here we show that...
Simple and Rigorous Proof Method for the Security of Practical Quantum Key Distribution in the Single-Qubit Regime Using Mismatched Basis Measurements
Michel Boyer, G. Brassard, N. Godbout +2 more·Aug 29, 2022
Quantum key distribution (QKD) protocols aim at allowing two parties to generate a secret shared key. While many QKD protocols have been proven unconditionally secure in theory, practical security analyses of experimental QKD implementations typicall...
Synergistic pretraining of parametrized quantum circuits via tensor networks
Manuel S. Rudolph, J. Miller, Danial Motlagh +3 more·Aug 29, 2022
Parametrized quantum circuits (PQCs) represent a promising framework for using present-day quantum hardware to solve diverse problems in materials science, quantum chemistry, and machine learning. We introduce a “synergistic” approach that addresses ...
Loading Probability Distributions in a Quantum circuit
K. Dasgupta, Binoy Paine·Aug 29, 2022
Quantum circuits generating probability distributions has applications in several areas. Areas like finance require quantum circuits that can generate distributions that mimic some given data pattern. Hamiltonian simulations require circuits that can ...
A scheme to create and verify scalable entanglement in optical lattice
You Zhou, Bo Xiao, Meng-Da Li +4 more·Aug 29, 2022
To achieve scalable quantum information processing, great efforts have been devoted to the creation of large-scale entangled states in various physical systems. Ultracold atom in optical lattice is considered as one of the promising platforms due to ...
Dephasing and Decorrelation of Spins in a Disordered Environment
S. Raman, S. Mukerjee·Aug 29, 2022
Dephasing of spins is a major roadblock to scaling up the size of quantum computing systems. We explore the possibility of utilizing highly disordered environments which are in the Many-Body Localized phase to arrest this dephasing. We embedded 2 `sp...
Image classification by combining quantum kernel learning and tensor networks
Nathan X. Kodama, Alex Bocharov, M. D. da Silva·Aug 29, 2022
Several variational quantum circuit approaches to machine learning have been proposed in recent years, with one promising class of variational algorithms involving tensor networks operating on states resulting from local feature maps. In contrast, a ...
Qubit Mapping and Routing via MaxSAT
A. Molavi, Amanda Xu, Martin Diges +3 more·Aug 29, 2022
Near-term quantum computers will operate in a noisy environment, without error correction. A critical problem for near-term quantum computing is laying out a logical circuit onto a physical device with limited connectivity between qubits. This is kno...
Controlled gate networks: theory and application to eigenvalue estimation
Max Bee-Lindgren, Zhengrong Qian, M. DeCross +5 more·Aug 29, 2022
We introduce a new scheme for quantum circuit design called controlled gate networks. Rather than trying to reduce the complexity of individual unitary operations, the new strategy is to toggle between all of the unitary operations needed with the fe...