Papers
Live trends in quantum computing research, updated daily from arXiv.
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15,359 papers in 12 months (-8% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Robust and Secure Hybrid Quantum-Classical Computation on Untrusted Cloud-Based Quantum Hardware
S. Upadhyay, Swaroop Ghosh·Sep 23, 2022
Quantum computers are currently accessible through a cloud-based platform that allows users to run their programs on a suite of quantum hardware. As the quantum computing ecosystem grows in popularity and utility, it is reasonable to expect more comp...
From String Detection to Orthogonal Vector Problem
Yunhao Wang, Tian-Xing Zheng, L. Horesh·Sep 23, 2022
Considering Grover's Search Algorithm (GSA) with the standard diffuser stage applied, we revisit the $3$-qubit unique String Detection Problem (SDP) and extend the algorithm to $4$-qubit SDP with multiple winners. We then investigate unstructured sea...
High-performance state-vector emulator of a quantum computer implemented in the rust programming language
Ilya A. Luchnikov, O. E. Tatarkin, A. Fedorov·Sep 23, 2022
We propose a high-performance state-vector emulator of a gate-based quantum processors developed in the Rust programming language. It supports OpenQASM 2.0 programming language for quantum circuits specification and has a user-friendly Python based A...
Multiplexed control of spin quantum memories in a photonic circuit
D. A. Golter, G. Clark, Tareq El Dandachi +11 more·Sep 23, 2022
A central goal in many quantum information processing applications is a network of quantum memories that can be entangled with each other while being individually controlled and measured with high fidelity. This goal has motivated the development of ...
Error-Mitigation-Aided Optimization of Parameterized Quantum Circuits: Convergence Analysis
Sharu Theresa Jose, O. Simeone·Sep 23, 2022
Variational quantum algorithms (VQAs) offer the most promising path to obtaining quantum advantages via noisy intermediate-scale quantum (NISQ) processors. Such systems leverage classical optimization to tune the parameters of a parameterized quantum...
Phonon Induced Spin Dephasing Time of Nitrogen Vacancy Centers in Diamond from First Principles
J. Simoni, V. Ivanov, T. Schenkel +1 more·Sep 23, 2022
Spin qubits with long dephasing times are an essential requirement for the development of new quantum technologies and have many potential applica-tions ranging from quantum information processing to quantum memories and quantum networking. Here we r...
An Algebraic-Geometry Approach to Prime Factorization
A. Montina, S. Wolf·Sep 23, 2022
New algorithms for prime factorization that outperform the existing ones or take advantage of particular properties of the prime factors can have a practical impact on present implementations of cryptographic algorithms that rely on the complexity of...
Experimental Realization and Characterization of Stabilized Pair-Coherent States
Jeffrey M. Gertler, Sean van Geldern, S. Shirol +2 more·Sep 23, 2022
The pair coherent state (PCS) is a theoretical extension of the Glauber coherent state to two harmonic oscillators. It is an interesting class of non-Gaussian continuous-variable entangled state and is also at the heart of a promising quantum error c...
Quantum Entanglement with Self-stabilizing Token Ring for Fault-tolerant Distributed Quantum Computing System
Jehn-Ruey Jiang·Sep 23, 2022
This paper shows how to construct quantum entanglement states of n qubits based on a self-stabilizing token ring algorithm. The entangled states can be applied to the fields of the quantum network, quantum Internet, distributed quantum computing, and...
Estimating the entanglement of random multipartite quantum states
Khurshed Fitter, Cécilia Lancien, I. Nechita·Sep 23, 2022
Genuine multipartite entanglement of a given multipartite pure quantum state can be quantified through its geometric measure of entanglement, which, up to logarithms, is simply the maximum overlap of the corresponding unit tensor with product unit te...
QuantumSolver: A quantum tool-set for developers
Daniel Escanez-Exposito, P. Caballero-Gil, Francisco Martín-Fernández·Sep 23, 2022
This paper introduces a new opensource quantum tool-set called QuantumSolver based on Qiskit to help developers without knowledge in quantum computing. The developed library includes a set of algorithms with different features: random number generati...
Magnetic phases of spatially modulated spin-1 chains in Rydberg excitons: Classical and quantum simulations.
M. Sajjan, H. Alaeian, S. Kais·Sep 23, 2022
In this work, we study the magnetic phases of a spatially modulated chain of spin-1 Rydberg excitons. Using the Density Matrix Renormalization Group (DMRG) technique, we study various magnetic and topologically nontrivial phases using both single-par...
Multiangle QAOA Does Not Always Need All Its Angles
Kaiyan Shi, R. Herrman, Ruslan Shaydulin +3 more·Sep 23, 2022
Introducing additional tunable parameters to quantum circuits is a powerful way of improving per-formance without increasing hardware requirements. A recently introduced multiangle extension of the quantum approximate optimization algorithm (ma-QAOA)...
On proving the robustness of algorithms for early fault-tolerant quantum computers
Rutuja Kshirsagar, Amara Katabarwa, Peter D. Johnson·Sep 22, 2022
The hope of the quantum computing field is that quantum architectures are able to scale up and realize fault-tolerant quantum computing. Due to engineering challenges, such ''cheap'' error correction may be decades away. In the meantime, we anticipat...
Topological Characterization with a Twist, Condensation, and Reflection
Tushar Pandey, E. Dumitrescu·Sep 22, 2022
Despite its putative robustness, the realization of and control over topological quantum matter is an ongoing grand challenge. Looking forward, robust characterization protocols are needed to first certify topological substrates before they are utili...
Iterative Qubits Management for Quantum Index Searching in a Hybrid System
W. Mu, Y. Mao, Long Cheng +3 more·Sep 22, 2022
Recent advances in quantum computing systems attract tremendous attention. Commercial companies, such as IBM, Amazon, and IonQ, have started to provide access to noisy intermediate-scale quantum computers. Researchers and entrepreneurs attempt to dep...
A Depth-Progressive Initialization Strategy for Quantum Approximate Optimization Algorithm
Xinwei Lee, Ning Xie, DongSheng Cai +2 more·Sep 22, 2022
The quantum approximate optimization algorithm (QAOA) is known for its capability and universality in solving combinatorial optimization problems on near-term quantum devices. The results yielded by QAOA depend strongly on its initial variational par...
Symplectic circuits, entanglement, and stimulated Hawking radiation in analogue gravity
Anthony J. Brady, I. Agulló, Dimitrios Kranas·Sep 22, 2022
We introduce a convenient set of analytical tools (the Gaussian formalism) and diagrams (sym-plectic circuits) to analyze multi-mode scattering events in analog gravity, such as pair-creation a l´a Hawking by black hole and white hole analog event ho...
Automatic and Effective Discovery of Quantum Kernels
Massimiliano Incudini, Daniele Lizzio Bosco, F. Martini +3 more·Sep 22, 2022
Quantum computing can empower machine learning models by enabling kernel machines to leverage quantum kernels for representing similarity measures between data. Quantum kernels are able to capture relationships in the data that are not efficiently co...
Quantum algorithms for uncertainty quantification: Applications to partial differential equations
François Golse, Shi Jin, Nana Liu·Sep 22, 2022
Most problems in uncertainty quantification, despite their ubiquitousness in scientific computing, applied mathematics and data science, remain formidable on a classical computer. For uncertainties that arise in partial differential equations (PDEs),...