Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Engineering Signals of Human-AI Collaboration in the Agentic Coding Era: A Longitudinal Analysis of 33,228 Pull Requests from vLLM and SGLang with Implications for Biomedical AI Agents and Bioinformatics Pipeline Developmen
Jiada Li, Xuesong Ye, Olamide Olowoniyi·Aug 14, 2026
The rapid adoption of AI coding assistants and autonomous agentic development systems has coincided with major changes in the pace and structure of open-source software engineering. Yet empirical longitudinal evidence of these changes at the team lev...
Nonorthogonal-state erasure as the resource behind apparent second-law violations
Xinshu Xia, Hui Hui Qin, Yu-Han Ma +2 more·Aug 14, 2026
Perfect deterministic distinguishing of nonorthogonal quantum states is forbidden by the linear and unitary structure of quantum mechanics. It has often been assumed that, if such distinguishing were available, it would be the resource enabling work ...
Resource-efficient quantum eigenvalue transform with commutator scaling
Arul Rhik Mazumder, James D. Watson, Samson Wang·Aug 14, 2026
We develop quantum algorithms for estimating properties of general matrix functions of Hermitian matrices, with applications to phase estimation, Green's function evaluation, and estimating measurement distributions of time-evolved states. The result...
The Capacity Region of the Multiple Access Channel with Non-Signaling Assistance
Yuhang Yao, Syed A. Jafar·Aug 14, 2026
The capacity region of the $K$-sender discrete memoryless multiple access channel (MAC) is fully characterized when non-signaling (NS) assistance is available to all $K$ transmitters and the receiver. It is shown to have the same form as the classica...
Small-world structure of quantum computer hardware
S. J. da Silva Junior, D. L. Shepelyansky, J. Lages·Aug 14, 2026
We show that the network of quantum register states of a quantum computer (QC), coupled through residual two-body interactions between qubits, exhibits small-world properties analogous to those of complex networks found in human society. The most pro...
Strong photoresponse of edge two-dimensional electrons in a magnetic field
Sergey A. Mikhailov, Wladislaw Michailow·Aug 13, 2026
Electrons in two-dimensional electron gases in the presence of an out-of-plane magnetic field propagate along the edge with a high velocity of the order of the Fermi velocity. Under microwave and terahertz radiation, photon absorption by these electr...
Fast classical simulation of `Fast, accurate, high-resolution simulation of large-scale Fermi-Hubbard models on a digital quantum processor'
Xiao-Yu Ouyang, Runze Chi, Garnet Kin-Lic Chan·Aug 13, 2026
We study the Néel quench dynamics of a 1D Fermi-Hubbard model which has recently been simulated on quantum hardware. We demonstrate that the set of 7260 observable trajectories measured in the quantum experiment can be obtained more quickly and accur...
Entanglement asymmetry characterization of the Chiral Anomaly
Alfred Benedito, German Sierra·Aug 13, 2026
Shao et al. recently showed that the 1+1D staggered fermion Hamiltonian admits a whole algebra of lattice operators that flow to the same axial charge in the thermodynamic limit (TL). On the lattice the principal axial charge does not commute with th...
RIVERPlace: Repairing Interconnect Violations with Efficient Retiming and Incremental Placement for AQFP Circuits
Robert S. Aviles, Ziyu Liu, Sasan Razmkhah +2 more·Aug 13, 2026
The Adiabatic Quantum-Flux-Parametron (AQFP) offers near-Landauer-limit energy efficiency but faces significant scalability challenges due to strict path balancing and limited drive strength. To address this, we propose RIVERPlace, a framework that i...
Certified coherent, informative, and non-entanglement-breaking fixed points of future-referential quantum feedback
Eran Kopel·Aug 13, 2026
We study quantum processes in which information extracted from a forward simulation is returned as input to an earlier internal time of the simulated dynamics: externally the protocol is an ordinary causally ordered circuit, but internally it is futu...
Choi--Jamiołkowski-type isomorphisms for von Neumann algebras
Marcin Marciniak, Michał Cholewiak·Aug 13, 2026
The Choi--Jamiołkowski isomorphism identifies completely positive maps with bipartite states and underlies much of finite-dimensional quantum information theory. For systems with infinitely many degrees of freedom, modelled by von Neumann algebras of...
Designing robust molecular spins for quantum technologies with theoretical chemistry
Timothy J. Krogmeier, Pranay Venkatesh, Mikayla Z. Fahrenbruch +3 more·Aug 13, 2026
Molecular spins represent a versatile platform for quantum information science, with the potential to offer chemically tunable, addressable qubits. However, achieving this requires understanding and mitigating quantum decoherence. This Chapter provid...
Scalable Test of Genuine Multipartite Entanglement via Partially Randomized Measurements
Jan Wojcik, Pawel Chrabkowski, Wieslaw Laskowski·Aug 13, 2026
Certifying genuine multipartite entanglement in quantum systems can require a number of measurements that grows exponentially with the system size. Here we introduce a criterion based on correlation-tensor subsector lengths restricted to local measur...
Efficient Hamiltonian Truncation: Fast Matrix Construction and Quantum Krylov Diagonalization
Rachel Houtz, Marco Knipfer, Konstantin Matchev +2 more·Aug 13, 2026
Hamiltonian truncation offers a nonperturbative route to quantum field theory, yet its accuracy is limited by the rapid expansion of the truncated Hilbert space, which drives up computational cost. We tackle this bottleneck with a hybrid strategy tha...
Strong-field Herman-Kluk propagator method for high-harmonic generation in molecules
Phi-Hung Tran, Hao Quan Truong, R. Esteban Goetz +1 more·Aug 13, 2026
We extend our recently developed semiclassical strong-field Herman-Kluk (SFHK) propagator method to calculate high-order harmonic generation (HHG) in diatomic molecules driven by few-cycle intense laser fields. On the example of applications to H2 an...
Fine-Tuning Qwen3-27B for C-to-Rust Code Translation: A Three-Stage Curriculum of Pretraining, Debugging-Aware SFT, and Task-Specific SFT
Pu Zhao, Changdi Yang, Yixiao Chen +4 more·Aug 13, 2026
Translating C code into safe, idiomatic Rust is a longstanding software-engineering goal because it can eliminate entire classes of memory-safety vulnerabilities while preserving the functional behavior of legacy systems. Large language models (LLMs)...
Open system probes of renormalization group flow
Andrew Keefe, Brenden Bowen, Saptarshi Biswas +3 more·Aug 13, 2026
Open system probes can provide an efficient means to characterize quantum many-body systems by employing them as engineered environments. The key idea is to map long-range spatial correlations of the environment onto dynamical correlations in the evo...
Entanglement Negativity in Noisy Quantum Volume Sampling
Elijah Pelofske, Stephan Eidenbenz·Aug 13, 2026
The Quantum Volume protocol uses scrambling random circuits to benchmark NISQ computers. Quantum Volume is generally well-regarded as a benchmark for small, noisy, quantum computers because it requires the quantum computer to implement many non-local...
Heuristic Lookahead Distillation Protocol Search
Matthew Barber, Stefano Pirandola·Aug 13, 2026
Bipartite qubit entanglement distillation is the process of converting noisy ebits into pure ebits using only local operations and classical communication. This is a core operation for quantum repeaters, enabling such crucial tasks as long-distance q...
Dual-species alkali and alkaline-earth-like optical tweezer arrays via interferometrically aligned high-NA objectives
K. Weber, M. McMaster, M. Anderson +7 more·Aug 13, 2026
We have developed a dual-species optical tweezer array apparatus combining $^{87}\text{Rb}$ and $^{174}\text{Yb}$ atoms with a permanent hybrid Twyman-Green--Fizeau interferometer, which provides precision co-alignment of two opposing 0.6-numerical a...