Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
An Abstract Model and Efficient Routing for Logical Entangling Gates on Zoned Neutral Atom Architectures
Yannick Stade, Ludwig Schmid, Lukas Burgholzer +1 more·May 13, 2024
Recent experimental achievements have demonstrated the potential of neutral atom architectures for fault-tolerant quantum computing. These architectures feature the dynamic rearrangement of atoms during computation-enabling nearly arbitrary two-dimen...
Hamiltonian-Based Quantum Reinforcement Learning for Neural Combinatorial Optimization
G. Kruse, Rodrigo Coehlo, A. Rosskopf +2 more·May 13, 2024
Advancements in Quantum Computing (QC) and Neural Combinatorial Optimization (NCO) represent promising steps in tackling complex computational challenges. On the one hand, Variational Quantum Algorithms such as QAOA can be used to solve a wide range ...
Towards Robust Benchmarking of Quantum Optimization Algorithms
David Bucher, N. Kraus, Jonas Blenninger +3 more·May 13, 2024
Benchmarking the performance of quantum optimization algorithms is crucial for identifying utility for industry-relevant use cases. However, Benchmarking processes most often vary between optimization applications and depend on user-specified goals. ...
Oracle Separation between Noisy Quantum Polynomial Time and the Polynomial Hierarchy
Nai-Hui Chia, Min-Hsiu Hsieh, Shih-Han Hung +1 more·May 12, 2024
This work investigates the oracle separation between the physically motivated complexity class of noisy quantum circuits, inspired by definitions such as those presented by Chen, Cotler, Huang, and Li (2022). We establish that with a constant error r...
Qsyn: A Developer-Friendly Quantum Circuit Synthesis Framework for NISQ Era and Beyond
Mu-Te Lau, Chin-Yi Cheng, Chengyang Lu +12 more·May 12, 2024
In this paper, we introduce Qsyn, a novel quantum circuit synthesis (QCS) framework designed to facilitate the research, development, testing, and experimentation of QCS algorithms and tools. Our framework is more developer-friendly than other modern...
ZX graphical calculus for continuous-variable quantum processes
Hironari Nagayoshi, W. Asavanant, Ryuhoh Ide +5 more·May 12, 2024
Continuous-variable (CV) quantum information processing is a promising candidate for large-scale fault-tolerant quantum computation. However, analysis of CV quantum process relies mostly on direct computation of the evolution of operators in the Heis...
Equivariant QAOA and the Duel of the Mixers
Boris Tsvelikhovskiy, Ilya Safro, Yuri Alexeev·May 12, 2024
Constructing an optimal mixer for Quantum Approximate Optimization Algorithm (QAOA) Hamiltonian is crucial for enhancing the performance of QAOA in solving combinatorial optimization problems. We present a systematic methodology for constructing the ...
Two-Step Quantum Search Algorithm for Solving Traveling Salesman Problems
Reiko Sato, Cui Gordon, Kazuhiro Saito +3 more·May 12, 2024
Quantum search algorithms, such as Grover's algorithm, are anticipated to efficiently solve constrained combinatorial optimization problems. However, applying these algorithms to the traveling salesman problem (TSP) on a quantum circuit presents a si...
Separable Power of Classical and Quantum Learning Protocols Through the Lens of No-Free-Lunch Theorem
Xinbiao Wang, Yuxuan Du, Kecheng Liu +3 more·May 12, 2024
The No-Free-Lunch (NFL) theorem, which quantifies problem- and data-independent generalization errors regardless of the optimization process, provides a foundational framework for comprehending diverse learning protocols' potential. Despite its signi...
Growth and structure of alpha-Ta films for quantum circuit integration
L. D. Alegria, Alex Abelson, Eunjeong Kim +5 more·May 12, 2024
Tantalum films incorporated into superconducting circuits have exhibited low surface losses, resulting in long-lived qubit states. The remaining loss pathways originate in microscopic defects that manifest as two level systems (TLSs) at low temperatu...
The Algorithm for Solving Quantum Linear Systems of Equations With Coherent Superposition and Its Extended Applications
Qiqing Xia, Qianru Zhu, Huiqin Xie +1 more·May 11, 2024
Many quantum algorithms for attacking symmetric cryptography involve the rank problem of quantum linear equations. In this paper, we first propose two quantum algorithms for solving quantum linear systems of equations with coherent superposition and ...
Efficient Quantum Simulation Algorithms in the Path Integral Formulation
Serene Shum, Nathan Wiebe·May 11, 2024
We provide a new paradigm for quantum simulation that is based on path integration that allows quantum speedups to be observed for problems that are more naturally expressed using the path integral formalism rather than the conventional sparse Hamilt...
Distributed exact generalized Grover’s algorithm
Xu Zhou, Xusheng Xu, Shenggen Zheng +1 more·May 11, 2024
Distributed quantum computation has garnered immense attention in the noisy intermediate-scale quantum (NISQ) era, where each computational node necessitates fewer qubits and quantum gates. In this paper, we focus on a generalized search problem invo...
Arctic: A Field Programmable Quantum Array Scheduling Technique
Ethan Decker·May 10, 2024
Advancements in neutral atom quantum computers have positioned them as a valuable framework for quantum computing, largely due to their prolonged coherence times and capacity for high-fidelity gate operations. Recently, neutral atom computers have en...
Holonomic swap and controlled-swap gates of neutral atoms via selective Rydberg pumping
C. F. Sun, X. Y. Chen, W. Mu +3 more·May 10, 2024
Holonomic quantum computing offers a promising paradigm for quantum computation due to its error resistance and the ability to perform universal quantum computations. Here, we propose a scheme for the rapid implementation of a holonomic swap gate in ...
Quantum Error Correction for Kids
R. A. Wolf·May 10, 2024
This extended abstract presents an intuitive gamified approach to one of the core concepts in quantum error correction: the stabiliser formalism. The game gradually builds up complexity and takes the players from classical repetition codes to Calderb...
Automatic structural search of tensor network states including entanglement renormalization
Ryoh Watanabe, Hiroshi Ueda·May 10, 2024
Tensor network (TN) states, including entanglement renormalization (ER), can encompass a wider variety of entangled states. When the entanglement structure of the quantum state of interest is nonuniform in real space, accurately representing the stat...
Continuous-variable quantum Boltzmann machine
Shikha Bangar, Leanto Sunny, Kubra Yeter-Aydeniz +1 more·May 10, 2024
We propose a continuous-variable quantum Boltzmann machine (CVQBM) using a powerful energy-based neural network. It can be realized experimentally on a continuous-variable (CV) photonic quantum computer. We used a CV quantum imaginary time evolution ...
Quantum Krylov-Subspace Method Based Linear Solver
Ruibin Xu, Zhu-Jun Zheng, Zheng Zheng·May 10, 2024
Despite the successful enhancement to the Harrow-Hassidim-Lloyd algorithm by Childs et al., who introduced the Fourier approach leveraging linear combinations of unitary operators, our research has identified non-trivial redundancies within this meth...
Explicit decoders using fixed-point amplitude amplification based on QSVT
Takeru Utsumi, Yoshifumi Nakata·May 9, 2024
Reliably transmitting quantum information via a noisy quantum channel is a central challenge in quantum information science. While constructing a decoder is crucial to this goal, little was known about quantum circuit implementations of decoders that...