Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hardware-aware Toffoli gate decomposition via echoed cross-resonance gates
M. AbuGhanem·Jan 4, 2025
Quantum computing promises transformative potential for solving classically intractable problems in chemistry, materials science, drug discovery, and optimization. However, current noisy intermediate-scale quantum (NISQ) devices face fundamental limi...
Enhanced Atom-by-Atom Assembly of Defect-Free Two-Dimensional Mixed-Species Atomic Arrays
Ming-Rui Wei, Kunpeng Wang, Jiayi Hou +8 more·Jan 4, 2025
Defect-free single atom array in optical tweezers is a promising platform for scalable quantum computing, quantum simulation, and quantum metrology. Extending single-species array to mixed-species one promise to offer new possibilities. In our recent...
Relational bundle geometric formulation of non-relativistic quantum mechanics
J. François, L. Ravera·Jan 3, 2025
We present a bundle geometric formulation of non-relativistic many-particles Quantum Mechanics. A wave function is seen to be a $\mathbb{C}$-valued cocyclic tensorial 0-form on configuration space-time seen as a principal bundle, while the Schrödinge...
Quantum Distribution Error Mitigation via the Circulant Structure of Pauli Noise
Alvin Gonzales·Jan 3, 2025
This work introduces distribution error mitigation (DEM), which mitigates the error in the output distribution of a quantum circuit. We provide a rigorous theoretical foundation. If the composite noise affecting the circuit is a Pauli channel, the id...
Enhanced Condensation Through Rotation
Maxim Chernodub, Frank Wilczek·Jan 3, 2025
We argue that rotation of a thin superconducting cylinder can increase the critical superconducting temperature substantially. A purely rotational effect originates from the tendency of a steadily rotating mechanical system to maximize its moment of ...
Genetic algorithm enhanced Solovay-Kitaev algorithm for quantum compiling of Fibonacci anyons
Jiangwei Long, Xuyang Huang, Jianxin Zhong +1 more·Jan 3, 2025
Quantum compiling, which aims to approximate target qubit gates by finding optimal sequences (braidwords) of basic braid operations, constitutes a fundamental challenge in quantum computing. We develop a genetic algorithm (GA)-enhanced Solovay–Kitaev...
Post-Quantum Key Agreement Protocols Based on Modified Matrix-Power Functions over Singular Random Integer Matrix Semirings
J. Hecht, Hugo Daniel Scolnik·Jan 3, 2025
Post-quantum cryptography is essential for securing digital communications against threats posed by quantum computers. Researchers have focused on developing algorithms that can withstand attacks from both classical and quantum computers, thereby ens...
Noise-Mitigated Variational Quantum Eigensolver with Pre-training and Zero-Noise Extrapolation
Wanqi Sun, Jungang Xu, Chenghua Duan·Jan 3, 2025
As a hybrid quantum-classical algorithm, the variational quantum eigensolver is widely applied in quantum chemistry simulations, especially in computing the electronic structure of complex molecular systems. However, on existing noisy intermediate-sc...
Topological quantum compilation of metaplectic anyons based on the genetic optimized algorithms
Jiangwei Long, Jianxin Zhong, L. Meng·Jan 3, 2025
Topological quantum computing holding global anti-interference ability is realized by braiding some anyons, such as well-known Fibonacci anyons. Here, based on $SO(3)_2 $ theory we obtain a total of 6 anyon models utilizing \textit{F}-matrices, \text...
Magnetic moments in the Poynting theorem, Maxwell equations, Dirac equation, and QED
Peter J Mohr·Jan 2, 2025
This paper examines the theory of electron magnetic dipole moment interactions with magnetic fields or other electrons in classical and quantum electrodynamics. We show that these interactions may be described by a version of the Poynting theorem tha...
Detecting high-dimensional entanglement by randomized product projections
Jin-Min Liang, Shuheng Liu, Shao-Ming Fei +1 more·Jan 2, 2025
The characterization of high-dimensional entanglement plays a crucial role in the field of quantum information science. Conventional entanglement criteria measuring coherent superpositions of multiple basis states face experimental bottlenecks on mos...
Four-qubit variational algorithms in silicon photonics with integrated entangled photon sources
Alessio Baldazzi, M. Sanna, M. Borghi +2 more·Jan 2, 2025
Variational quantum algorithms are hybrid quantum-classical approaches extensively studied for their potential to leverage near-term quantum hardware for computational advantages. In this work, we successfully execute two variational quantum algorith...
A Quantum Genetic Algorithm Framework for the MaxCut Problem
P. Viana, F. M. P. Neto·Jan 2, 2025
The MaxCut problem is a fundamental problem in Combinatorial Optimization, with significant implications across diverse domains such as logistics, network design, and statistical physics. The algorithm represents innovative approaches that balance th...
Polynomial-time quantum Gibbs sampling for the weak and strong coupling regime of the Fermi-Hubbard model at any temperature
Štěpán Šmíd, Richard Meister, Mario Berta +1 more·Jan 2, 2025
Quantum computers hold the potential to revolutionise the simulation of quantum many-body systems, with profound implications for fundamental physics and applications like molecular and material design. However, demonstrating quantum advantage in sim...
Generalized Cross-Entropy Benchmarking for Random Circuits with Ergodicity
Bin Cheng, Fei Meng, Zhi-Jiong Zhang +1 more·Jan 1, 2025
Cross-entropy benchmarking is a central technique used to certify a quantum chip in recent experiments. To better understand its mathematical foundation and develop new benchmarking schemes, we introduce the concept of ergodicity to random circuit sa...
The phase diagram of quantum chromodynamics in one dimension on a quantum computer
Anton T. Than, Y. Y. Atas, Abhijit Chakraborty +8 more·Dec 31, 2024
The quantum chromodynamics (QCD) phase diagram, which reveals the state of strongly interacting matter at different temperatures and densities, is key to answering open questions in physics, ranging from the behaviour of particles in neutron stars to...
Cryogenic photonic link using an extended-InGaAs photodiode and short pulse illumination toward high-fidelity drive of superconducting qubits
Takuma Nakamura, Dahyeon Lee, Jason Horng +3 more·Dec 31, 2024
We investigate short pulse illumination of a high-speed extended-InGaAs photodiode at cryogenic temperatures toward its use in control and readout of superconducting qubits. First, we demonstrate high detector responsivity at 1550 nm illumination ...
Efficient Approximate Degenerate Ordered Statistics Decoding for Quantum Codes via Reliable Subset Reduction
Ching-Feng Kung, Kao-Yueh Kuo, Ching-Yi Lai·Dec 30, 2024
Efficient and scalable decoding of quantum codes is essential for high-performance quantum error correction. In this work, we introduce Reliable Subset Reduction (RSR), a reliability-driven preprocessing framework that leverages belief propagation (B...
Investigating layer-selective transfer learning of QAOA parameters for Max-Cut problem
Francesco Aldo Venturelli, Sreetama Das, Filippo Caruso·Dec 30, 2024
The quantum approximate optimization algorithm (QAOA) is a variational quantum algorithm (VQA) ideal for noisy intermediate-scale quantum (NISQ) processors, and is highly successful in solving combinatorial optimization problems (COPs). It has been o...
Routing-based technique for defect mitigation in quantum error correction
Runshi Zhou, Fang Zhang, Linghang Kong +3 more·Dec 30, 2024
As quantum chips scale up for large-scale computation, hardware defects become inevitable and must be carefully addressed. In this work, we introduce Halma, a defect mitigation technique empowered by an expanded native gate set that incorporates the ...