Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Phase gadget compilation of quantum circuits using multiqubit gates
Jonathan Nemirovsky, Maya Chuchem, Lee Peleg +3 more·Oct 19, 2025
Quantum circuit synthesis and compilation are critical components in the quantum computing stack, both for contemporary quantum systems, where efficient use of limited resources is essential, as well as for large-scale fault-tolerant platforms, where...
Symmetric Reduction Techniques for Quantum Graph Colouring
Lord Sen, Shyamapada Mukherjee·Oct 19, 2025
This paper introduces an efficient quantum computing method for reducing special graphs in the context of the graph coloring problem. The special graphs considered include both symmetric and non-symmetric graphs where the axis passes through nodes on...
Near-Optimal Quantum Algorithms for Computing (Coarse) Correlated Equilibria of General-Sum Games
Tongyang Li, Xinzhao Wang, Yexin Zhang·Oct 19, 2025
Computing Nash equilibria of zero-sum games in classical and quantum settings is extensively studied. For general-sum games, computing Nash equilibria is PPAD-hard and the computing of a more general concept called correlated equilibria has been wide...
Successive generation of nontrivial Riemann zeros from a Wu-Sprung type potential
Peter Jaksch·Oct 19, 2025
A series of numerical experiments are performed, where a symmetric potential is generated for the 1D time-independent Schrödinger equation, with an eigenspectrum that matches the imaginary part of the first nontrivial zeros of the Riemann Zeta Functi...
Post-processed estimation of quantum state trajectories
Soroush Khademi, Jesse J. Slim, Kiarn T. Laverick +5 more·Oct 19, 2025
Weak quantum measurements enable real-time tracking and control of dynamical quantum systems, producing quantum trajectories -- evolutions of the quantum state of the system conditioned on measurement outcomes. For classical systems, the accuracy of ...
Mitigating Detuning-Induced Systematic Errors in Entanglement-Enhanced Metrology
Shingo Kukita, Yuichiro Matsuzaki·Oct 19, 2025
Quantum sensing leverages non-classical resources to enhance precision. In particular, Greenberger-Horne-Zeilinger (GHZ) states can, in principle, attain the Heisenberg limit that surpasses the standard quantum limit. While many studies have examined...
Correlation of divergency: c-delta. Being different in a similar way or not
Johan F. Hoorn·Oct 19, 2025
This paper introduces the correlation-of-divergency coefficient, c-delta, a custom statistical measure designed to quantify the similarity of internal divergence patterns between two groups of values. Unlike conventional correlation coefficients such...
Efficient bidirectional quantum frequency conversion between telecom and visible bands using programmable III-V nanophotonic waveguides
Jierui Hu, Hao Yuan, Joshua Akin +3 more·Oct 19, 2025
Quantum frequency conversion (QFC) is essential for interfacing quantum systems operating at different wavelengths and for realizing scalable quantum networks. Despite extensive progress, achieving QFC with simultaneous high efficiency, low pump powe...
QuanBench: Benchmarking Quantum Code Generation with Large Language Models
Xiaoyu Guo, Minggu Wang, Jianjun Zhao·Oct 19, 2025
Large language models (LLMs) have demonstrated good performance in general code generation; however, their capabilities in quantum code generation remain insufficiently studied. This paper presents QuanBench, a benchmark for evaluating LLMs on quantu...
Strong-field Driven Sub-cycle Band Structure Modulation and Dephasing Control
Francis Walz, Shashank Kumar, Amirali Sharifi Olounabadi +6 more·Oct 18, 2025
Over the past decade, ultrafast electron dynamics in the solid state have been extensively studied using various strong light-matter interaction techniques, such as high-harmonic generation. These studies lead to multiple interpretations of light-mat...
Cavity QED beyond the Jaynes-Cummings model
Abeer Al Ghamdi, Gin Jose, Almut Beige·Oct 18, 2025
As atom-cavity systems are becoming more sophisticated, the limitations of the Jaynes-Cummings model are becoming more apparent. In this paper, we therefore take a more dynamical approach to the modelling of atom-cavity systems and do not reduce the ...
Quantum thermometric sensing: Local vs. Remote approaches
Seyed Mohammad Hosseiny, Abolfazl Pourhashemi Khabisi, Jamileh Seyed-Yazdi +4 more·Oct 18, 2025
Quantum thermometry leveraging quantum sensors is investigated with an emphasis on fundamental precision bounds derived from quantum estimation theory. The proposed sensing platform consists of two dissimilar qubits coupled via capacitor, which induc...
QRTlib: A Library for Fast Quantum Real Transforms
Armin Ahmadkhaniha, Lu Chen, Jake Doliskani +1 more·Oct 18, 2025
Real-valued transforms such as the discrete cosine, sine, and Hartley transforms play a central role in classical computing, complementing the Fourier transform in applications from signal and image processing to data compression. However, their quan...
Generalized Fusion of Qudit Graph States
N. Rimock, Y. Oz·Oct 18, 2025
We formalize a generalized type-II fusion operation for qudit cluster states within linear optics. Two designated qudits, one from each input cluster, interfere with optional ancilla qudits via a passive linear-optical network, followed by number-res...
Three-Wave Mixing Element with Quantum Paraelectric Materials
Eric I. Rosenthal, Christopher S. Wang, Jamison Sloan +6 more·Oct 18, 2025
At cryogenic temperatures and microwave frequencies, the perovskite crystals strontium titanate (STO) and potassium tantalate (KTO) have large, tunable permittivity arising from a quantum paraelectric phase. As such, these materials hold promise as a...
Klein-Gordon equation within the real Hilbert space formalism
Cristiano Rosa, Sergio Giardino·Oct 18, 2025
Within this article one finds the statement of the Klein-Gordon problem within the real Hilbert space formalism ($\mathbbm R$HS) in terms of complex wave functions, and in terms of quaternionic wave functions as well. The complex formulation comprise...
Quantum Complexity in Rule-Based Constrained Many-Body Models: Scars, Fragmentation, and Chaos
Arkaprava Sil, Sudipto Singha Roy·Oct 18, 2025
Kinetic constraints in quantum many-body systems strongly restrict the accessible Hilbert space, giving rise to highly nontrivial dynamical behavior. In recent years, such systems have attracted growing interest as they provide insight into mechanism...
A necessary and sufficient condition for genuinely entangled n-qubit states with six non-zero coefficients
Dafa Li·Oct 18, 2025
In [Science 340, 1205, 7 June (2013)], via polytopes Michael Walter et al. proposed a sufficient condition detecting the genuinely entangled pure states. In this paper, assume that a state with six non-zero coefficients is not a trivially separable s...
Marginal Influence of Anomalous Josephson Current on Odd-Frequency Spin-Triplet Pairing in Ferromagnetic Josephson Diodes
Subhajit Pal, Colin Benjamin·Oct 18, 2025
We examine how an anomalous Josephson current influences odd-frequency superconducting correlations in two distinct Josephson junction geometries. The first configuration consists of two ferromagnetic layers sandwiched between conventional s-wave sup...
Temporal-order-driven asymmetric quantum interference and temporal coherence enhancement in spontaneous six-wave mixing
Da Zhang, Yu Zhang·Oct 18, 2025
Narrow-band multiphoton entanglement sources serve as a core enabling resource for advanced quantum information technologies. Recently, researchers have directly generated energy-time entangled triphoton W states in a hot atomic medium via spontaneou...