Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Disentanglement by means of action-induced representations
Gorka Muñoz-Gil, Hendrik Poulsen Nautrup, Arunava Majumder +4 more·Feb 6, 2026
Learning interpretable representations with variational autoencoders (VAEs) is a major goal of representation learning. The main challenge lies in obtaining disentangled representations, where each latent dimension corresponds to a distinct generativ...
Geometry of restricted information: the case of quantum thermodynamics
Tiago Pernambuco, Lucas Chibebe Céleri·Feb 6, 2026
We formulate a geometric framework in which physical laws emerge from restricted access to microscopic information. Measurement constraints are modeled as a gauge symmetry acting on density operators, inducing a gauge-reduced space of physically dist...
Quantum Attention by Overlap Interference: Predicting Sequences from Classical and Many-Body Quantum Data
Alessio Pecilli, Matteo Rosati·Feb 6, 2026
We propose a variational quantum implementation of self-attention (QSA), the core operation in transformers and large language models, which predicts future elements of a sequence by forming overlap-weighted combinations of past data. At variance wit...
The HyperFrog Cryptosystem: High-Genus Voxel Topology as a Trapdoor for Post-Quantum KEMs
Victor Duarte Melo·Feb 6, 2026
HyperFrog is an experimental post-quantum Key Encapsulation Mechanism that explores a variant of the Learning With Errors (LWE) design space in which the secret is not sampled from an independent product distribution, but is deterministically derived...
Second law of thermodynamics in closed quantum many-body systems
Yuuya Chiba, Yasushi Yoneta, Ryusuke Hamazaki +1 more·Feb 6, 2026
The second law of thermodynamics for adiabatic operations -- constraints on state transitions in closed systems under external control -- is one of the fundamental principles of thermodynamics. On the other hand, it is recently established that even ...
A Complete Equational Theory for Real-Clifford+CH Quantum Circuits
Alexandre Clément·Feb 6, 2026
We introduce a complete equational theory for the fragment of quantum circuits generated by the real Clifford gates plus the two-qubit controlled-Hadamard gate. That is, we give a simple set of equalities between circuits of this fragment, and prove ...
Temperature Scaling Attack Disrupting Model Confidence in Federated Learning
Kichang Lee, Jaeho Jin, JaeYeon Park +2 more·Feb 6, 2026
Predictive confidence serves as a foundational control signal in mission-critical systems, directly governing risk-aware logic such as escalation, abstention, and conservative fallback. While prior federated learning attacks predominantly target accu...
Normal mode splitting induced synchronization blockade in coupled quantum van der Pol oscillators
Nissi Thomas, M. Senthilvelan·Feb 6, 2026
We report a normal-mode induced synchronization blockade in coupled quantum van der Pol oscillators under the influence of external drive. In this mechanism, the coupling hybridizes the oscillator modes into spectrally split normal modes. The destruc...
High-speed phase-encoded quantum secure direct communication over 11.4 km heterogeneous free-space and fiber links
Ze-Zhou Sun, Yuan-Bin Cheng, Yu-Chen Liu +5 more·Feb 6, 2026
Robust quantum transmission is driving a new paradigm in space-ground quantum networking. Although phase encoding has been widely adopted in terrestrial fiber channels, it has long been considered unsuitable for free-space quantum communication. Here...
Malicious Agent Skills in the Wild: A Large-Scale Security Empirical Study
Yi Liu, Zhihao Chen, Yanjun Zhang +5 more·Feb 6, 2026
Third-party agent skills extend LLM-based agents with instruction files and executable code that run on users' machines. Skills execute with user privileges and are distributed through community registries with minimal vetting, but no ground-truth da...
Extensible universal photonic quantum computing with nonlinearity
Shang Yu, Jinzhao Sun, Kuan-Cheng Chen +17 more·Feb 6, 2026
Universal quantum computing requires an architecture that supports both linear circuits and, crucially, strong nonlinear resources. For quantum photonic systems, integrating such nonlinearities with scalable linear circuitry has been a major bottlene...
Algebraic Reduction to Improve an Optimally Bounded Quantum State Preparation Algorithm
Giacomo Belli, Michele Amoretti·Feb 6, 2026
The preparation of $n$-qubit quantum states is a cross-cutting subroutine for many quantum algorithms, and the effort to reduce its circuit complexity is a significant challenge. In the literature, the quantum state preparation algorithm by Sun et al...
Local Certification of Many-Body Steady States
Miguel Frías Pérez, Antonio Acín·Feb 6, 2026
We present a relaxation-based method to bound expectation values on the steady state of dissipative many-body quantum systems described by master equations of the Lindblad form. Instead of targeting to represent the entire state, we promote the reduc...
Quantum Dynamics of Vibrationally-Assisted Electron Transfer beyond Condon approximation in the Ligand-Receptor Complex
Muhammad Waqas Haseeb, Mohamad Toutounji·Feb 6, 2026
We investigate the quantum dynamics of ligand--receptor electron transfer and conformational response in a prototypical viral binding complex, using the SARS-CoV-2 Spike protein bound to the human ACE2 receptor as a model system. Treating the ACE2--S...
Coherent Spin-Photon Interface of single PL6 Color Centers in Silicon Carbide
Zhen-Xuan He, Gergő Thiering, Rui-Jian Liang +10 more·Feb 6, 2026
The PL6 color center in silicon carbide has recently emerged as a promising platform for quantum information processing, yet its coherent spin--photon interface has remained largely unexplored. Here we present a comprehensive investigation of single ...
Integrating AI and Quantum-Inspired Techniques for Efficient Enzyme Fermentation Optimization
Ying-Wei Tseng, Yu-Ting Kao, Yeong-Jar Chang +4 more·Feb 6, 2026
This paper introduces a new method that combines Artificial Intelligence (AI) and quantum-inspired techniques to improve the efficiency of multi-variable optimization experiments. By using advanced software simulations, this approach significantly re...
HyQuRP: Hybrid quantum-classical neural network with rotational and permutational equivariance for 3D point clouds
Semin Park, Chae-Yeun Park·Feb 6, 2026
We introduce HyQuRP, a hybrid quantum-classical neural network equivariant to rotational and permutational symmetries. While existing equivariant quantum machine learning models often rely on ad hoc constructions, HyQuRP is built upon the formal foun...
Quenching Speculation in Quantum Markets via Entangled Neural Traders
Kieran Hymas, Hiu Ming Lau, Kareem Raslan +5 more·Feb 6, 2026
Speculative trading can drive pronounced market instabilities, yet existing regulatory and macroprudential tools intervene only after such dynamics emerge. Quantum technologies offer a fundamentally new means of shaping economic behavior by introduci...
Semi-Device-Independent Quantum Random Number Generator Resistant to General Attacks
Zhenguo Lu, Jundong Wu, Yu Zhang +4 more·Feb 6, 2026
Quantum random number generators (QRNGs) produce true random numbers based on the inherent randomness of quantum theory, rendering them a foundational segment of quantum cryptography. Distinguished from trusted-device QRNGs whose security depends on ...
Lunar Silicon Cavity
Jun Ye, Zoey Z. Hu, Ben Lewis +5 more·Feb 6, 2026
The Moon's permanently shadowed regions (PSRs) are among the coldest places in the Solar System and are expected to become key landing sites for upcoming international space agency missions. Their proximity to peaks of perpetual solar power and poten...