Papers
Live trends in quantum computing research, updated daily from arXiv.
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Contextuality Derived from Minimal Decision Dynamics: Quantum Tug-of-War Decision Making
Song-Ju Kim·Jan 15, 2026
Decision making often exhibits context dependence that challenges classical probability theory. While quantum cognition has successfully modeled such phenomena, it remains unclear whether quantum probability is merely a convenient assumption or a nec...
Reentrant topological phases and entanglement scalings in moiré-modulated extended Su-Schrieffer-Heeger Model
Guo-Qing Zhang, L. F. Quezada, Shi-Hai Dong·Jan 15, 2026
Recent studies of moiré physics have unveiled a wealth of opportunities for significantly advancing the field of quantum phase transitions. However, properties of reentrant phase transitions driven by moiré strength are poorly understood. Here, we in...
Light-induced Magnetization by Quantum Geometry
Hiroki Yoshida, Takehito Yokoyama·Jan 14, 2026
We propose a mechanism for the inverse Faraday and the inverse Cotton--Mouton effects arising from quantum geometry, characterized by the quantum metric quadrupole and the weighted quantum metric. Within a semiclassical framework based on the Boltzma...
Non-invertible circuit complexity from fusion operations
Saskia Demulder·Jan 14, 2026
Modern understanding of symmetry in quantum field theory includes both invertible and non-invertible operations. Motivated by this, we extend Nielsen's geometric approach to quantum circuit complexity to incorporate non-invertible gates. These arise ...
A measurement-based protocol for the generation of delocalised quantum states of a mechanical system
Matteo Bordin·Jan 14, 2026
Non-Gaussian mechanical states are a key resource for quantum-enhanced sensing and tests of macroscopic quantum physics. We propose a measurement-based protocol to herald delocalized, nonclassical states of a mechanical oscillator in cavity optomecha...
Relaxation Process During Complex Time Evolution In Two-Dimensional Integrable and Chaotic CFTs
Chen Bai, Weibo Mao, Masahiro Nozaki +2 more·Jan 14, 2026
We investigate the complex time evolution of a vacuum state with the insertion of a local primary operator in two-dimensional conformal field theories (2d CFTs). This complex time evolution can be considered as a composite process constructed from Lo...
Mechanistic principles of exciton-polariton relaxation
Ian Haines, Arshath Manjalingal, Logan Blackham +2 more·Jan 14, 2026
Exciton-polaritons are light-matter hybrid quasi-particles that have emerged as a flexible platform for developing quantum technologies and engineering material properties. However, the fundamental mechanistic principles that govern their dynamics an...
Quantifying the Relationship Between Strain and Bandgap in Thin Ga$_2$Se$_2$
Lottie L. Murray, Eric Herrmann, Igor Evangelista +3 more·Jan 13, 2026
We present a rigorous analysis that combines theory, simulation, and experimental measurements to quantify the relationship between strain and bandgap in two dimensional gallium selenide (Ga$_2$Se$_2$). Experimentally, we transfer thin Ga$_2$Se$_2$ f...
Breaking the Orthogonality Barrier in Quantum LDPC Codes
Kenta Kasai·Jan 13, 2026
Classical low-density parity-check (LDPC) codes are a widely deployed and well-established technology, forming the backbone of modern communication and storage systems. It is well known that, in this classical setting, increasing the girth of the Tan...
Local Magnetometry from Measurement-Induced Dissipation
Rishith Reddy, Parveen Kumar, Ankur Das·Jan 13, 2026
Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an order can be a...
Attosecond quantum optics
Mohamed Sennary, Javier Rivera-Dean, Yihe Wange +2 more·Jan 13, 2026
Modern quantum optics primarily operates in the quasistationary regime, isolated from the intrinsic timescales of ultrafast optical fields. Pushing these boundaries into the femtosecond and attosecond domains is a critical frontier. Here, we generate...
Phase-sensitive superposition of quantum states
Xiaotong Wang, Shunlong Luo, Yue Zhang·Jan 13, 2026
Although the principle of superposition lies at the heart of quantum mechanics and is the root of almost all quantum phenomena such as coherence and entanglement, its quantification, except for that related to the resource theory of coherence and int...
A dataflow programming framework for linear optical distributed quantum computing
Giovanni de Felice, Boldizsár Poór, Cole Comfort +4 more·Jan 13, 2026
Photonic systems offer a promising platform for interconnecting quantum processors and enabling scalable, networked architectures. Designing and verifying such architectures requires a unified formalism that integrates linear algebraic reasoning with...
Extending Qubit Coherence Time via Hybrid Dynamical Decoupling
Qi Yao, Jun Zhang, Wenxian Zhang +1 more·Jan 13, 2026
Dynamical decoupling (DD) and bath engineering are two parallel techniques employed to mitigate qubit decoherence resulting from their unavoidable coupling to the environment. Here, we present a hybrid DD approach that integrates pulsed DD with bath ...
Vacuum-dressed superconductivity in NbN observed in a high-$Q$ terahertz cavity
Hongjing Xu, Andrey Baydin, Qinyan Yi +8 more·Jan 13, 2026
Emerging theoretical frameworks suggest that physical properties of matter can be altered within an optical cavity by harnessing quantum vacuum electromagnetic fluctuations, even in the total absence of external driving fields. Among the most intrigu...
Learning Better Error Correction Codes with Hybrid Quantum-Assisted Machine Learning
Yariv Yanay·Jan 12, 2026
Quantum error correction is one of the fundamental building blocks of digital quantum computation. The Quantum Lego formalism has introduced a systematic way of constructing new stabilizer codes out of basic lego-like building blocks, which in previo...
Chiroptical effect induced by gravitational waves
Haorong Wu, Xilong Fan·Jan 12, 2026
We propose the gravitational analog of the chiroptical effect for the first time, demonstrating that gravitational waves (GWs) can induce a reversal of photon chirality through the exchange of angular momentum, namely the spin-2-gravitation chiroptic...
Local Scale Invariance in Quantum Theory: Experimental Predictions
Indrajit Sen, Matthew Leifer·Jan 12, 2026
We explore the experimental predictions of the local scale invariant, non-Hermitian pilot-wave (de Broglie-Bohm) formulation of quantum theory introduced in arXiv:2601.03567. We use Weyl's definition of gravitational radius of charge to obtain the fi...
Graphene-assisted resonant transmission and enhanced Goos-Hänchen shift in a frustrated total internal reflection configuration
Yi Chen, Yue Ban, Qi-Biao Zhu +1 more·Jan 11, 2026
Graphene-assisted resonant transmission and enhanced Goos-Hänchen shift are investigated in a two-prism frustrated-total-internal-reflection configuration. Due to the excitation of surface plasmons induced by graphene in low terahertz frequency range...
Counter-diabatic driving for fast spin control in a two-electron double quantum dot
Yue Ban, Xi Chen·Jan 11, 2026
The techniques of shortcuts to adiabaticity have been proposed to accelerate the "slow" adiabatic processes in various quantum systems with the applications in quantum information processing. In this paper, we study the counter-diabatic driving for f...