Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Hardware-efficient stabilization of entanglement via engineered dissipation in superconducting circuits
Changling Chen, Kai Tang, Yuxuan Zhou +8 more·Jul 18, 2024
Generation and preservation of quantum entanglement are among the primary tasks in quantum information processing. State stabilization via quantum bath engineering offers a resource-efficient approach to achieve this objective. However, current metho...
On the dynamical Lie algebras of quantum approximate optimization algorithms
Jonathan Allcock, Miklos Santha, Pei Yuan +1 more·Jul 17, 2024
Dynamical Lie algebras (DLAs) have emerged as a valuable tool in the study of parameterized quantum circuits, helping to characterize both their expressiveness and trainability. In particular, the absence or presence of barren plateaus (BPs) -- flat ...
Classification and reconstruction for single-pixel imaging with classical and quantum neural networks
Sofya Manko, Dmitry Frolovtsev·Jul 17, 2024
Single-pixel cameras are an effective solution for imaging outside the visible spectrum, where traditional CMOS/CCD cameras have challenges. When combined with machine learning, they can analyze images quickly enough for practical applications. Solvi...
SHARC-VQE: Simplified Hamiltonian approach with refinement and correction enabled variational quantum eigensolver for molecular simulation.
Harshdeep Singh, Sonjoy Majumder, Sabyashachi Mishra·Jul 17, 2024
Quantum computing is finding increasingly more applications in quantum chemistry, particularly to simulate electronic structure and molecular properties of simple systems. The transformation of a molecular Hamiltonian from the fermionic space to the ...
Tutorial on Quantum Error Correction for 2024 Quantum Information Knowledge (QuIK) Workshop
P. Nadkarni, Narayanan Rengaswamy, Bane Vasi'c·Jul 17, 2024
We provide a brief review of the fundamentals of quantum computation and quantum error correction for the participants of the first Quantum Information Knowledge (QuIK) workshop at the 2024 IEEE International Symposium on Information Theory (ISIT 202...
Conditional diffusion-based parameter generation for quantum approximate optimization algorithm
Fanxu Meng, Xiang-Yu Zhou, Pengcheng Zhu +1 more·Jul 17, 2024
The Quantum Approximate Optimization Algorithm (QAOA) is a hybrid quantum-classical algorithm that shows promise in efficiently solving the Max-Cut problem, a representative example of combinatorial optimization. However, its effectiveness heavily de...
Highly Efficient Parallel Row-Layered Min-Sum MDPC Decoder for McEliece Cryptosystem
Jiaxuan Cai, Xinmiao Zhang·Jul 17, 2024
The medium-density parity-check (MDPC) code-based McEliece cryptosystem remains a finalist of the post-quantum cryptography standard. The Min-sum decoding algorithm achieves better performance-complexity tradeoff than other algorithms for MDPC codes....
CUAOA: A Novel CUDA-Accelerated Simulation Framework for the QAOA
Jonas Stein, Jonas Blenninger, David Bucher +4 more·Jul 17, 2024
The Quantum Approximate Optimization Algorithm (QAOA) is a prominent quantum algorithm designed to find approximate solutions to combinatorial optimization problems, which are challenging for classical computers. In the current era, where quantum har...
Pulse-based variational quantum optimization and metalearning in superconducting circuits
Yapeng Wang, Yongcheng Ding, F. A. Cárdenas-López +1 more·Jul 17, 2024
Solving optimization problems using variational algorithms stands out as a crucial application for noisy intermediate-scale devices. Instead of constructing gate-based quantum computers, our focus centers on designing variational quantum algorithms w...
Tomography of Parametrized Quantum States
Franz J. Schreiber, J. Eisert, Johannes Jakob Meyer·Jul 17, 2024
Characterizing quantum systems is a fundamental task that enables the development of quantum technologies. Various approaches, ranging from full tomography to instances of classical shadows, have been proposed to this end. However, quantum states tha...
A Brief Review of Quantum Machine Learning for Financial Services
Mina Doosti, P. Wallden, C. Hamill +3 more·Jul 17, 2024
This review paper examines state-of-the-art algorithms and techniques in quantum machine learning with potential applications in finance. We discuss QML techniques in supervised learning tasks, such as Quantum Variational Classifiers, Quantum Kernel ...
Experimental Demonstration of Spontaneous Symmetry Breaking with Emergent Multiqubit Entanglement.
Ri-Hua Zheng, Wenli Ning, Jiangbo Lü +8 more·Jul 17, 2024
Spontaneous symmetry breaking (SSB) is crucial to the occurrence of phase transitions. Once a phase transition occurs, a quantum system presents degenerate eigenstates that lack the symmetry of the Hamiltonian. After crossing the critical point, the ...
Profiling quantum circuits for their efficient execution on single- and multi-core architectures
Medina Bandic, Pablo le Henaff, Anabel Ovide +8 more·Jul 17, 2024
Application-specific quantum computers offer the most efficient means to tackle problems intractable by classical computers. Realizing these architectures necessitates a deep understanding of quantum circuit properties and their relationship to execu...
Quantum vs. Symplectic Computers
Igor Volovich·Jul 17, 2024
In this paper, we propose the concept of symplectic computers, which have the potential to be more powerful than quantum computers. Unlike quantum computing, which consists of a sequence of unitary transformations (gates) and projectors (measurements...
A primary quantum current standard based on the Josephson and the quantum Hall effects
S. Djordjevic, Ralf Behr, Wilfrid Poirier·Jul 17, 2024
The new definition of the ampere calls for a quantum current standard able to deliver a flow of elementary charges, e, controlled with a relative uncertainty of 10−8. Despite many efforts, nanodevices handling electrons one by one have never demonstr...
Improved Belief Propagation Decoding Algorithms for Surface Codes
Jiahan Chen, Zhengzhong Yi, Zhipeng Liang +1 more·Jul 16, 2024
Quantum error correction is crucial for universal fault-tolerant quantum computing. Highly accurate and low-time-complexity decoding algorithms play an indispensable role in ensuring quantum error correction works effectively. Among existing decoding...
Walking through Hilbert Space with Quantum Computers.
Tong Jiang, Jinghong Zhang, Moritz K A Baumgarten +6 more·Jul 16, 2024
Computations of chemical systems' equilibrium properties and nonequilibrium dynamics have been suspected of being a "killer app" for quantum computers. This review highlights the recent advancements of quantum algorithms tackling complex sampling tas...
Quantum dissipative search via Lindbladians
Peter J. Eder, Jernej Rudi Finžgar, Sarah Braun +1 more·Jul 16, 2024
Closed quantum systems follow a unitary time evolution that can be simulated on quantum computers. By incorporating nonunitary effects via, e.g., measurements on ancilla qubits, these algorithms can be extended to open-system dynamics, such as Markov...
Improved quantum power method and numerical integration using a quantum singular-value transformation
Nhat A. Nghiem, Hiroki Sukeno, Shuyu Zhang +1 more·Jul 16, 2024
Quantum singular value transformation (QSVT) is a framework that has been shown to unify many primitives in quantum algorithms. In this work, we leverage the QSVT framework in two directions. We first show that the QSVT framework can accelerate one r...
Improve Variational Quantum Eigensolver by Many-Body Localization
Li Xin, Zhang-qi Yin·Jul 16, 2024
Variational quantum algorithms have been widely demonstrated in both experimental and theoretical contexts to have extensive applications in quantum simulation, optimization, and machine learning. However, the exponential growth in the dimension of t...