Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Modular quantum-to-quantum Bernoulli factory in an integrated photonic processor
Francesco Hoch, Taira Giordani, Luca Castello +9 more·Oct 3, 2024
Generation and manipulation of randomness is a relevant task for several applications of information technology. It has been shown that quantum mechanics offers some advantages for this type of task. A promising model for randomness manipulation is p...
Polynomial time constructive decision algorithm for multivariable quantum signal processing
Yuki Ito, Hitomi Mori, Kazuki Sakamoto +1 more·Oct 3, 2024
Quantum signal processing (QSP) and quantum singular value transformation (QSVT) have provided a unified framework for understanding many quantum algorithms, including factorization, matrix inversion, and Hamiltonian simulation. As a multivariable ve...
Topological entanglement and number theory
Siddharth Dwivedi·Oct 2, 2024
The recent developments in the study of topological multi-boundary entanglement in the context of 3d Chern-Simons theory (with gauge group $G$ and level $k$) suggest a strong interplay between entanglement measures and number theory. The purpose of t...
Informed Dynamic Scheduling for QLDPC Codes
Tzu-Hsuan Huang, Yeong-Luh Ueng·Oct 2, 2024
Recent research has shown that syndrome-based belief propagation using layered scheduling (sLBP) can not only accelerate the convergence rate but also improve the error rate performance by breaking the quantum trapping sets for quantum low-density pa...
Resource-efficient equivariant quantum convolutional neural networks
Koki Chinzei, Quoc Hoan Tran, Yasuhiro Endo +1 more·Oct 2, 2024
Equivariant quantum neural networks (QNNs) are promising variational models that exploit symmetries to improve machine learning capabilities. Despite theoretical developments in equivariant QNNs, their implementation on near-term quantum devices rema...
Optimization of a Quantum Subset Sum Oracle
A. Benoit, Sam Schwartz, Ron K. Cytron·Oct 2, 2024
We investigate the implementation of an oracle for the Subset Sum problem for quantum search using Grover's algorithm. Our work concerns reducing the number of qubits, gates, and multi-controlled gates required by the oracle. We describe the compilat...
Quantum photonic gates with two-dimensional random walkers.
S. A. Hassani Gangaraj, Dan T. Nguyen·Oct 2, 2024
Quantum gates are crucial for processing quantum information, but implementing them in a photonic platform poses unique challenges due to the peculiar way photons propagate and interfere. Here, we propose quantum photonic gates that utilize continuou...
Universal logical quantum photonic neural network processor via cavity-assisted interactions
J. Basani, M. Niu, E. Waks·Oct 2, 2024
Encoding quantum information within bosonic modes offers a promising direction for hardware-efficient and fault-tolerant quantum information processing. However, achieving high-fidelity universal control over bosonic encodings using native photonic h...
Variational quantum eigensolver approach to prime factorization on IBM's noisy intermediate scale quantum computer
Mona Sobhani, Yahui Chai, T. Hartung +1 more·Oct 2, 2024
This paper presents a hybrid quantum-classical approach to prime factorization. The proposed algorithm is based on the variational quantum eigensolver (VQE), which employs a classical optimizer to find the ground state of a given Hamiltonian. A numer...
Robust Quantum Gate Preparation in Open Environments
Luke S. Baker, Syed A. Shah, Anatoly Zlotnik +1 more·Oct 2, 2024
We develop an optimal control algorithm for robust quantum gate preparation in open environments with the state of the quantum system represented using the Lindblad master equation. The algorithm is based on adaptive linearization and iterative quadr...
Low-depth Amplitude Estimation without Really Trying
Dinh-Long Vu, Bin Cheng, P. Rebentrost·Oct 2, 2024
Standard quantum amplitude estimation algorithms provide quadratic speedup to Monte-Carlo simulations but require a circuit depth that scales as inverse of the estimation error. In view of the shallow depth in near-term devices, the precision achieve...
Quantum-data-driven dynamical transition in quantum learning
Bingzhi Zhang, Junyu Liu, Liang Jiang +1 more·Oct 2, 2024
Quantum neural networks, parameterized quantum circuits optimized under a specific cost function, provide a paradigm for achieving near-term quantum advantage in quantum information processing. Understanding QNN training dynamics is crucial for optim...
QCRMut: Quantum Circuit Random Mutant generator tool
Sinhu'e Garc'ia Gil, Luis Llana D'iaz, José-Ignacio Requeno Jarabo·Oct 2, 2024
Quantum computing has been on the rise in recent years, evidenced by a surge in publications on quantum software engineering and testing. Progress in quantum hardware has also been notable, with the introduction of impressive systems like Condor boas...
MaxSAT decoders for arbitrary CSS codes
Mohammadreza Noormandipour, Tobias Haug·Oct 2, 2024
Quantum error correction (QEC) is essential for operating quantum computers in the presence of noise. Here, we accurately decode arbitrary Calderbank-Shor-Steane (CSS) codes via the maximum satisfiability (MaxSAT) problem. We show how to map quantum ...
Simple Construction of Qudit Floquet Codes on a Family of Lattices
Andrew Tanggara, Mile Gu, Kishor Bharti·Oct 2, 2024
Dynamical quantum error-correcting codes (QECC) offer wider possibilities in how one can protect logical quantum information from noise and perform fault-tolerant quantum computation compared to static QECCs. A family of dynamical QECCs called the ``...
QKD as a Quantum Machine Learning task
T. Decker, M. Gallezot, S. Kerstan +3 more·Oct 2, 2024
We propose considering Quantum Key Distribution (QKD) protocols as a use case for Quantum Machine Learning (QML) algorithms. We define and investigate the QML task of optimizing eavesdropping attacks on the quantum circuit implementation of the BB84 ...
Flux-pump induced degradation of $T_1$ for dissipative cat qubits
Léon Carde, Pierre Rouchon, Joachim Cohen +1 more·Oct 1, 2024
Dissipative stabilization of cat qubits autonomously corrects for bit flip errors by ensuring that reservoir-engineered two-photon losses dominate over other mechanisms inducing phase flip errors. To describe the latter, we derive an effective master...
Beating the Optimal Verification of Entangled States via Collective Strategies
Ye-Chao Liu, Jiangwei Shang·Oct 1, 2024
In the realm of quantum information processing, the efficient characterization of entangled states poses an overwhelming challenge, rendering the traditional methods including quantum tomography unfeasible and impractical. To tackle this problem, we ...
High-performance conditional-driving gate for Kerr parametric oscillator qubits
Hiroomi Chono, Hayato Goto·Oct 1, 2024
Kerr parametric oscillators (KPOs), two-photon driven Kerr-nonlinear resonators, can stably hold coherent states with opposite-sign amplitudes and are promising devices for quantum computing. Recently, we have theoretically proposed a two-qubit gate ...
Analytic Solutions of Control Mechanism in Single-Qubit Systems
Erez Abrams·Oct 1, 2024
The mechanism governing the evolution of controlled quantum systems is often obscured, making their dynamics hard to interpret. Mitra and Rabitz {[Phys. Rev. A 67, 033407 (2003)]} define mechanism via a perturbative expansion of pathways between eige...