Papers
Live trends in quantum computing research, updated daily from arXiv.
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Torsion-Induced Quantum Fluctuations in Metric-Affine Gravity using the Stochastic Variational Method
Tomoi Koide, Armin van de Venn·Feb 14, 2026
This review paper comprehensively examines the influence of spatial torsion on quantum fluctuations from the perspectives of Metric-Affine Gravity (MAG) and the Stochastic Variational Method (SVM). We first outline the fundamental framework of MAG, a...
Non-Abelian Aharonov-Bohm Caging in Synthetic Dimensions with a Trapped Ion
Wanchao Yao, Sai Li, Zhiyuan Liu +7 more·Feb 14, 2026
Aharonov-Bohm (AB) caging is a complete localization phenomenon in two-dimensional lattices due to destructive interference induced by the background gauge fields. However, current investigations of AB caging are mostly restricted to the Abelian gaug...
Non-Uniform Quantum Fourier Transform
Junaid Aftab, Yuehaw Khoo, Haizhao Yang·Feb 13, 2026
The Discrete Fourier Transform (DFT) is central to the analysis of uniformly sampled signals, yet many practical applications involve non-uniform sampling, requiring the Non-Uniform Discrete Fourier Transform (NUDFT). While quantum algorithms for the...
Matter-induced plaquette terms in a $\mathbb{Z}_2$ lattice gauge theory
Matjaž Kebrič, Fabian Döschl, Umberto Borla +4 more·Feb 13, 2026
Lattice gauge theories (LGTs) provide a powerful framework for studying confinement, topological order, and exotic quantum matter. In particular, the paradigmatic phenomenon of confinement, where dynamical matter is coupled to gauge fields and forms ...
Towards Trapped-Ion Thermometry Using Cavity-Based EIT
Abhijit Kundu, Vijay Bhatt, Arijit Sharma·Feb 13, 2026
We present a technique for measuring ion temperature using cavity-based electromagnetically induced transparency (EIT) applicable for cavity QED systems. This method enables efficient extraction of the ion's phonon occupation number following sub-Dop...
Predicting properties of quantum thermal states from a single trajectory
Jiaqing Jiang, Jiaqi Leng, Lin Lin·Feb 13, 2026
Estimating thermal expectation values of observables is a fundamental task in quantum physics, quantum chemistry, and materials science. While recent quantum algorithms have enabled efficient quantum preparation of thermal states, observable estimati...
RING: Rabi oscillations induced by nonresonant geometric drive
Baksa Kolok, András Pályi·Feb 12, 2026
Coherent control of two-level quantum systems is typically achieved using resonant driving fields, forming the basis for qubit operations. Here, we report a mechanism for inducing complete Rabi oscillations in monochromatically driven two-level quant...
Resource-Adaptive Teleportation Under Imperfect Entanglement: A Code-Puncturing Framework
Mahmoud Saad Abouamer, Jaron Skovsted Gundersen, Søren Pilegaard Rasmussen +1 more·Feb 12, 2026
Quantum teleportation is a foundational protocol for sending quantum information through entanglement distribution and classical communication. Assuming ideal classical communication, the reliability of quantum teleportation is limited by the fidelit...
Quantum nonreciprocity from qubits coupled by Dzyaloshinskii-Moriya interaction
Zhenghao Zhang, Qingtian Miao, G. S. Agarwal·Feb 11, 2026
We present a theoretical study of quantum nonreciprocity induced via a Dzyaloshinskii-Moriya interaction (DMI) in an otherwise achiral, waveguide quantum electrodynamics. Using the full quantum master equation and input-output formalism for two-level...
Long-Range Pairing in the Kitaev Model: Krylov Subspace Signatures
Rishabh Jha, Heiko Georg Menzler·Feb 11, 2026
Krylov subspace methods quantify operator growth in quantum many-body systems through Lanczos coefficients that encode how operators spread under time evolution. While these diagnostics have been proposed to distinguish quantum chaos from integrabili...
Reaching the quantum noise limit for interferometric measurement of optical nonlinearity in vacuum
Ali Aras, Adrien E. Kraych, Xavier Sarazin +3 more·Feb 11, 2026
Quantum Electrodynamics predicts that the vacuum must behave as a nonlinear optical medium:the vacuum optical index should increase when vacuum is stressed by intense electromagnetic fields.The DeLLight (Deflection of Light by Light) project aims to ...
Scaling and Universality at Noise-Affected Non-Equilibrium Spin Correlation Functions
R. Jafari, Alireza Akbari·Feb 11, 2026
We investigate scaling and universality in nonequilibrium spin correlation functions in the presence of uncorrelated noise. In the absence of noise, spin correlation functions exhibit a crossover from monotonic decay at fast sweep velocities to oscil...
Gravitationally-induced Conversion of Local Coherence to Entanglement
Hazhir Dolatkhah, Shahriar Salimi, Soroush Haseli·Feb 10, 2026
In recent years, the quantum nature of gravity has attracted significant attention as one of the most important problems in modern physics. Here, we analyze the mechanism of gravitationally-induced entanglement from the perspective of quantum resourc...
Efficient and deterministic high-dimensional controlled-swap gates on hybrid linear optical systems with high fidelity
Gui-Long Jiang, Jun-Bin Yuan, Wen-Qiang Liu +1 more·Feb 10, 2026
Implementation of quantum logic gates with linear optical elements plays a prominent role in quantum computing due to the relatively easier manipulation and realization. We present efficient schemes to implement controlled-NOT (CNOT) gate and control...
Majorana zero modes in superconductor-magnet heterostructures with d-wave order
Bastien Fajardo, T. Pereg-Barnea, Arun Paramekanti +1 more·Feb 9, 2026
Magnetic skyrmions in proximity to superconductors offer a route to engineering topological superconductivity due to the synthetic spin-orbit coupling engendered by the spin twist of the skyrmion texture. Previous theoretical works show that this lea...
Volume-law protection of metrological advantage
Piotr Wysocki, Jan Chwedeńczuk, Marcin Płodzień·Feb 9, 2026
Although entanglement can boost metrological precision beyond the standard quantum limit, the advantage often disappears with particle loss. We demonstrate that scrambling safeguards precision by dispersing information about the encoded parameter int...
Cascaded Optomechanical Sensing for Small Signals
Marta Maria Marchese, Daniel Braun, Stefan Nimmrichter +1 more·Feb 9, 2026
We propose a sensing scheme for detecting weak forces that achieves Heisenberg-limited sensitivity without relying on entanglement or other non-classical resources. Our scheme utilizes coherent averaging across a chain of N optomechanical cavities, u...
Error compensation without a time penalty: robust spin-lock-induced crossing in solution NMR
Mohamed Sabba, Christian Bengs, Urvashi D. Heramun +1 more·Feb 9, 2026
A modification of the widely-used spin-lock-induced crossing (SLIC) procedure is proposed for the solution nuclear magnetic resonance (NMR) of strongly coupled nuclear spin systems, including singlet NMR and parahydrogen-enhanced hyperpolarised NMR e...
Quantum Wasserstein isometries of the $n$-qubit state space: a Wigner-type result
Gergely Bunth, Eszter Szabó, Dániel Virosztek·Feb 9, 2026
We determine the isometry group of the $n$-qubit state space with respect to the quantum Wasserstein distance induced by the so-called symmetric transport cost for all $n \in \mathbb{N}.$ It turns out that the isometries are precisely the Wigner symm...
Non-Markovianity induced by Pauli-twirling
Joris Kattemölle, Balázs Gulácsi, Guido Burkard·Feb 9, 2026
Noise forms a central obstacle to effective quantum information processing. Recent experimental advances have enabled the tailoring of noise properties through Pauli twirling, transforming arbitrary noise channels into Pauli channels. This underpins ...