Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Reinforced Disentanglers on Random Unitary Circuits
Ning Bao, Keiichiro Furuya, Gun Suer·Nov 14, 2024
We search for efficient disentanglers on random Clifford circuits of two-qubit gates arranged in a brick-wall pattern, using the proximal policy optimization (PPO) algorithm \cite{schulman2017proximalpolicyoptimizationalgorithms}. Disentanglers are d...
Quantum computing inspired paintings: reinterpreting classical masterpieces
Arianna Crippa, Yahui Chai, Omar Costa Hamido +2 more·Nov 14, 2024
We aim to apply a quantum computing technique to compose artworks. The main idea is to revisit three paintings of different styles and historical periods:''Narciso'', painted circa 1597-1599 by Michelangelo Merisi (Caravaggio),''Les fils de l'homme''...
Dual-Space Invariance as a Universal Criterion for Multifractal Critical States
Tong Liu·Nov 13, 2024
In Anderson localization, eigenstates of disordered quantum systems are broadly classified as extended, localized, or critical. Although critical states exhibit multifractal character, a precise and operational criterion for their identification rema...
Unified error bounds for perturbations of non-Markovian open quantum systems in Gaussian environments
Zhen Huang, Yuanran Zhu, Gunhee Park +1 more·Nov 13, 2024
We present perturbative error bounds for the non-Markovian dynamics of observables in open quantum systems interacting with Gaussian environments, governed by a general Liouville dynamics. This extends the work of [Mascherpa et al., Phys. Rev. Lett. ...
Proposal for a Bell Test with Entangled Atoms of Different Mass
X. T. Yan, S. Kannan, Y. S. Athreya +2 more·Nov 13, 2024
We propose a Bell test experiment using momentum-entangled atom pairs of different masses, specifically metastable helium isotopes 3He* and 4He*, though the method extends to other atom species. Entanglement is generated via collisions, after which t...
A decompositional framework for process theories in spacetime
Matthias Salzger, John H. Selby·Nov 13, 2024
There has been a recent surge of interest within the field of quantum foundations regarding incorporating ideas from general relativity and quantum gravity. However, many quantum information tools remain agnostic to the underlying spacetime. For inst...
Leveraging Pre-Trained Neural Networks to Enhance Machine Learning with Variational Quantum Circuits
Jun Qi, Chao-Han Yang, S. Y. Chen +3 more·Nov 13, 2024
Quantum Machine Learning (QML) offers tremendous potential but is currently limited by the availability of qubits. We introduce an innovative approach that utilizes pre-trained neural networks to enhance Variational Quantum Circuits (VQC). This techn...
Real-time measurement error mitigation for one-way quantum computation
T. Hartung, Stephan Schuster, J. Zanthier +1 more·Nov 13, 2024
We propose a quantum error mitigation scheme for single-qubit measurement errors, particularly suited for one-way quantum computation. Contrary to well established error mitigation methods for circuit-based quantum computation, that require to run th...
Reducing QAOA Circuit Depth by Factoring out Semi-Symmetries
Jonas Nusslein, Leo Sunkel, Jonas Stein +4 more·Nov 13, 2024
QAOA is a quantum algorithm for solving combinatorial optimization problems. It is capable of searching for the minimizing solution vector $x$ of a QUBO problem $x^TQx$. The number of two-qubit CNOT gates in the QAOA circuit scales linearly in the nu...
A fiber array architecture for atom quantum computing
Xiao Li, Jiayi Hou, Jia-Chao Wang +8 more·Nov 13, 2024
Arrays of single atoms trapped in optical tweezers are increasingly recognized as a promising platform for scalable quantum computing. In both the fault-tolerant and NISQ eras, the ability to individually control qubits is essential for the efficient...
Fault-tolerant fermionic quantum computing
A. Schuckert, Eleanor Crane, A. V. Gorshkov +2 more·Nov 13, 2024
Simulating the dynamics of electrons and other fermionic particles in quantum chemistry, materials science, and high-energy physics is one of the most promising applications of fault-tolerant quantum computers. However, the overhead in mapping time e...
RSFQ All-Digital Programmable Multitone Generator for Quantum Applications
João Barbosa, Jack C. Brennan, A. Casaburi +4 more·Nov 13, 2024
One of the most important and topical challenges of quantum circuits is their scalability. Rapid single flux quantum (RSFQ) technology is at the forefront of replacing current standard CMOS-based control architectures for a number of applications, in...
Extending Quantum Perceptrons: Rydberg Devices, Multi-Class Classification, and Error Tolerance
Ishita Agarwal, T. Patti, Rodrigo Araiza Bravo +2 more·Nov 13, 2024
Quantum Neuromorphic Computing (QNC) merges quantum computation with neural computation to create scalable, noise-resilient algorithms for quantum machine learning (QML). At the core of QNC is the quantum perceptron (QP), which leverages the analog d...
Encodings of the weighted MAX k-CUT problem on qubit systems
Franz G. Fuchs, R. P. Bassa, Frida Lien·Nov 13, 2024
The weighted MAX k -CUT problem involves partitioning a weighted undirected graph into k subsets, or colors, to maximize the sum of the weights of edges between vertices in different subsets. This problem has significant applications ...
An Implementation of the Finite Element Method in Hybrid Classical/Quantum Computers
Abhishek Arora, B. Ward, Caglar Oskay·Nov 13, 2024
This manuscript presents the Quantum Finite Element Method (Q-FEM) developed for use in noisy intermediate-scale quantum (NISQ) computers and employs the variational quantum linear solver (VQLS) algorithm. The proposed method leverages the classical ...
On some states minimizing uncertainty relations: A new look at these relations
Krzysztof Urbanowski·Nov 12, 2024
Analyzing Heisenberg--Robertson (HR) and Schrödinger uncertainty relations we found, that there can exist a large set of states of the quantum system under considerations, for which the lower bound of the product of the standard deviations of a pair ...
Cavity-Vacuum-Induced Chiral Spin Liquids in Kagome Lattices: Tuning and Probing Topological Quantum Phases via Cavity Quantum Electrodynamics
Chenan Wei, Liu Yang, Qing-Dong Jiang·Nov 12, 2024
Topological phases in frustrated quantum magnetic systems have captivated researchers for decades, with the chiral spin liquid (CSL) standing out as one of the most compelling examples. Featured by long-range entanglement, topological order, and exot...
Characterising memory in quantum channel discrimination via constrained separability problems
Ties-A. Ohst, Shijun Zhang, Hai Chau Nguyen +2 more·Nov 12, 2024
Quantum memories are a crucial precondition in many protocols for processing quantum information. A fundamental problem that illustrates this statement is given by the task of channel discrimination, in which an unknown channel drawn from a known ran...
Scalable General Error Mitigation for Quantum Circuits
Philip Dobler, Jannik Pflieger, Fengping Jin +4 more·Nov 12, 2024
In quantum computing, error mitigation is a method to improve the results of an error-prone quantum processor by post-processing them on a classical computer. In this work, we improve the General Error Mitigation (GEM) method for scalability. GEM rel...
Routing Algorithm Within the Multiple Non-Overlapping Paths’ Approach for Quantum Key Distribution Networks
E. Kiktenko, A. Tayduganov, Aleksey K. Fedorov·Nov 12, 2024
We develop a novel key routing algorithm for quantum key distribution (QKD) networks that utilizes a distribution of keys between remote nodes, i.e., not directly connected by a QKD link, through multiple non-overlapping paths. This approach focuses ...