Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,393 papers in 12 months (-22% vs prior quarter)
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Hardware platform mentions in abstracts — Photonic leads
Single-gate, multipartite entanglement on a room-temperature quantum register
Joseph D. Minnella, Mathieu Ouellet, Amelia R. Klein +1 more·Aug 11, 2025
Multipartite entanglement is an essential aspect of quantum systems, needed to execute quantum algorithms, implement error correction, and achieve quantum-enhanced sensing. In solid-state quantum registers such nitrogen-vacancy (NV) centers in diamon...
Spin ladder quantum simulators from spin-orbit-coupled quantum dot spin qubits
Yang-Zhi Chou, Sankar Das Sarma·Aug 11, 2025
Motivated by the recent Ge hole spin qubit experiments, we construct and study a two-leg spin ladder from a quantum dot array with spin-orbit couplings (SOCs), aiming to uncover the many-body phase diagrams and provide concrete guidance for the Ge ho...
Color it, Code it, Cancel it: k-local dynamical decoupling from classical additive codes
Minh T. P. Nguyen, Maximilian Rimbach-Russ, Stefano Bosco·Aug 11, 2025
Dynamical decoupling is a central technique in quantum computing for actively suppressing decoherence and systematic imperfections through sequences of single-qubit operations. Conventional sequences typically aim to completely freeze system dynamics...
Pangenome-guided sequence assembly via binary optimisation
Josh Cudby, James Bonfield, Chenxi Zhou +2 more·Aug 11, 2025
De novo genome assembly is challenging in highly repetitive regions; however, reference-guided assemblers often suffer from bias. We propose a framework for pangenome-guided sequence assembly, which can resolve short-read data in complex regions with...
Single-Shot Decoding and Fault-tolerant Gates with Trivariate Tricycle Codes
Abraham Jacob, Campbell McLauchlan, Dan E. Browne·Aug 11, 2025
While quantum low-density parity check (qLDPC) codes are a low-overhead means of quantum information storage, it is valuable for quantum codes to possess fault-tolerant features beyond this resource efficiency. In this work, we introduce trivariate t...
Quantum Circuits for Matrix-Product Unitaries
Georgios Styliaris, Rahul Trivedi, J. Ignacio Cirac·Aug 11, 2025
Matrix-product unitaries (MPUs) are many-body unitary operators that, as a consequence of their tensor-network structure, preserve the entanglement area law in 1D systems. However, it is unknown how to implement an MPU as a quantum circuit since the ...
$\bf A^2$-robust superradiant phase transition in hybrid qubit-cavity optomechanics
Gang Liu, Wei Xiong·Aug 11, 2025
The $\mathbf{A}^2$ term presents a fundamental challenge to realizing the superradiant phase transition (SPT) in cavity quantum electrodynamics. Here, we propose a hybrid quantum system enabling SPT regardless of the presence of the $\mathbf{A}^2$ te...
On the relationship between noise squeezing and Rabi oscillations in active quantum dot ensembles
Ori Gabai, Amnon Willinger, Igor Khanonkin +3 more·Aug 11, 2025
Squeezed light is usually generated using passive nonlinear materials. Semiconductor lasers and optical amplifiers (SOAs) also offer nonlinearities but they differ in that they add amplified spontaneous emission (ASE). Squeezing to below the vacuum l...
Master Equation for a Quantum Gas of Polarizable Particles in Cavities
Tom Schmit, Catalin-Mihai Halati, Tobias Donner +2 more·Aug 11, 2025
Quantum gases of atoms and molecules in optical cavities offer a formidable laboratory for studying the out-of-equilibrium dynamics of open quantum systems with long-range interactions. Long-range interactions are here mediated by multiple scattering...
Memory Effects and Entanglement Dynamics of Finite time Acceleration
Nitesh K. Dubey, Sanved Kolekar·Aug 11, 2025
We construct a smooth trajectory in Minkowski spacetime that is inertial in the asymptotic past and future but undergoes approximately uniform acceleration for a finite duration. In a suitable limit, this trajectory reduces to the standard Rindler tr...
Graded Quantum Codes
Tony Shaska·Aug 11, 2025
This work develops a geometric framework for constructing quantum error-correcting codes from weighted projective and orbifold structures, integrating algebraic geometry, divisor theory, and the CSS stabilizer formalism. Beginning with weighted proje...
Quantum-centric simulation of hydrogen abstraction by sample-based quantum diagonalization and entanglement forging
Tyler Smith, Tanvi P. Gujarati, Mario Motta +11 more·Aug 11, 2025
The simulation of electronic systems is an anticipated application for quantum-centric computers, i.e. heterogeneous architectures where classical and quantum processing units operate in concert. An important application is the computation of radical...
Scheduling of syndrome measurements with a few ancillary qubits
Shintaro Sato, Yasunari Suzuki·Aug 11, 2025
Quantum error-correcting codes are a vital technology for demonstrating reliable quantum computation. They require data qubits for encoding quantum information and ancillary qubits for taking error syndromes necessary for error correction. The need f...
Characterization of syndrome-dependent logical noise in detector regions
Matthew Girling, B. Criger, Cristina Cîrstoiu·Aug 11, 2025
Characterizing how quantum error correction circuits behave under realistic hardware noise is essential for testing the premises that enable scalable fault tolerance. Logical error rates conditioned on syndrome outcomes are needed to enable noise-awa...
Handling fabrication defects in hex-grid surface codes
O. Higgott, Benjamin Anker, M. McEwen +1 more·Aug 11, 2025
Recent work has shown that a hexagonal grid qubit layout, with only three couplers per qubit, is sufficient to implement the surface code with performance comparable to that of a traditional four-coupler layout [McEwen et al., 2023]. In this work we ...
Quantum Prime Factorization: A Novel Approach Based on Fermat Method
Julien Mellaerts·Aug 11, 2025
In this paper, we introduce a novel quantum algorithm for the factorization of composite odd numbers. This work makes two significant contributions. First, we present a new improvement to the classical Fermat method, fourfold reducing the computation...
Expanding a 4-qubit Dicke state to a 5-qubit Dicke state with limited qubit access
Bibhuti Thapa, Oberon Moran, Duc-Kha Vu +1 more·Aug 11, 2025
Preparing multipartite entangled states under restricted qubit access is a key challenge for modular and distributed quantum architectures. We address this by presenting two complementary circuits. First, we propose a resource-efficient deterministic...
Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins
D. Fern'andez-Fern'andez, Y. Matsumoto, L. Vandersypen +2 more·Aug 11, 2025
Shuttling spin qubits in systems with large spin-orbit interaction (SOI) can cause errors during motion. However, in this work, we demonstrate that SOI can be harnessed to implement an arbitrary high-fidelity two-qubit (2Q) gate. We consider two spin...
Cold atomic ensembles as quantum antennas for distributed networks of single-atom arrays
Xiaoshui Lin, Yefeng Mei, Chuanwei Zhang·Aug 11, 2025
Single neutral atoms in optical tweezer arrays offer a promising platform for high-fidelity quantum computing at local nodes. Nonetheless, creating entanglement between remote nodes in a distributed quantum network remains challenging due to inherent...
Spin Phonon Coupling and Relaxation time in Lu(II) compound with 9.2GHz clock transition
Xiaoliang Zhang, Haechan Park·Aug 11, 2025
Electron spin qubits operating at atomic clock transitions exhibit exceptionally long coherence times, making them promising candidates for scalable quantum information applications. In solid-state systems, interactions between qubits and lattice pho...