Papers
Live trends in quantum computing research, updated daily from arXiv.
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Research Volume
13,127 papers in 12 months (+1% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Rare-Event Quantum Sensing using Logical Qubits
Robert Ott, Torsten V. Zache, Soonwon Choi +2 more·Jan 7, 2026
We present a novel protocol to detect rare signals in a noisy environment using quantum error correction (QEC). The key feature of our protocol is the discrimination between signal and noise through distinct higher-order correlations, realized by the...
Chiral Lattice Gauge Theories from Symmetry Disentanglers
Ryan Thorngren, John Preskill, Lukasz Fidkowski·Jan 7, 2026
We propose a Hamiltonian framework for constructing chiral gauge theories on the lattice based on symmetry disentanglers: constant-depth circuits of local unitaries that transform not-on-site symmetries into on-site ones. When chiral symmetry can be ...
Microscopic Dynamics of False Vacuum Decay in the $2+1$D Quantum Ising Model
Umberto Borla, Achilleas Lazarides, Christian Groß +1 more·Jan 7, 2026
False vacuum decay, which is understood to happen through bubble nucleation, is a prominent phenomenon relevant to elementary particle physics and early-universe cosmology. Understanding its microscopic dynamics in higher spatial dimensions is curren...
Improved Lower Bounds for Learning Quantum Channels in Diamond Distance
Aadil Oufkir, Filippo Girardi·Jan 7, 2026
We prove that learning an unknown quantum channel with input dimension $d_A$, output dimension $d_B$, and Choi rank $r$ to diamond distance $\varepsilon$ requires $ Ω\!\left( \frac{d_A d_B r}{\varepsilon \log(d_B r / \varepsilon)} \right)$ channel qu...
Privacy at Scale in Networked Healthcare
M. Amin Rahimian, Benjamin Panny, James Joshi·Jan 7, 2026
Digitized, networked healthcare promises earlier detection, precision therapeutics, and continuous care; yet, it also expands the surface for privacy loss and compliance risk. We argue for a shift from siloed, application-specific protections to priv...
Below-shot-noise capacity in phase estimation using nonlinear interferometers
Cristofero Oglialoro, Gerard J. Machado, Felix Farsch +7 more·Jan 7, 2026
Over the past decade, several schemes for imaging and sensing based on nonlinear interferometers have been proposed and demonstrated experimentally. These interferometers exhibit two main advantages. First, they enable probing a sample at a chosen wa...
Bridging the Linear-Quadratic Gap: A Quantum-Classical Hybrid Approach to Robust Supply Chain Design
Rudraksh Sharma, Ravi Katukam, Arjun Nagulapally·Jan 7, 2026
The design of supply chain networks in densely populated urban logistics systems faces a timely dilemma: the traditional optimisation approaches are effective to maximise the level of demand perfusion, but they are limited to embracing large expenses...
Scattering phase shift in quantum mechanics on quantum computers
Peng Guo, Paul LeVan, Frank X. Lee +1 more·Jan 7, 2026
We investigate the feasibility of extracting infinite volume scattering phase shift on quantum computers in a simple one-dimensional quantum mechanical model, using the formalism established in Ref.~\cite{Guo:2023ecc} that relates the integrated corr...
Surface Optimization of Aluminum Resonators for Robust Quantum Device Fabrication
Simon J. K. Lang, Ignaz Eisele, Alwin Maiwald +8 more·Jan 7, 2026
Aluminum remains the central material for superconducting qubits, and considerable effort has been devoted to optimizing its deposition and patterning for quantum devices. However, while post-processing of Nb- and Ta-based resonators has been widely ...
Quantum computing for multidimensional option pricing: End-to-end pipeline
Julien Hok, Álvaro Leitao·Jan 7, 2026
This work introduces an end-to-end framework for multi-asset option pricing that combines market-consistent risk-neutral density recovery with quantum-accelerated numerical integration. We first calibrate arbitrage-free marginal distributions from Eu...
Phase-Randomized Laser Pulse Generation at 10 GHz for Quantum Photonic Applications
Yuen San Lo, Adam H. Brzosko, Peter R. Smith +7 more·Jan 7, 2026
Gain-switching laser diodes is a well-established technique for generating optical pulses with random phases, where the quantum randomness arises naturally from spontaneous emission. However, the maximum switching rate is limited by phase diffusion: ...
Limitations for adaptive quantum state tomography in the presence of detector noise
Adrian Skasberg Aasen, Martin Gärttner·Jan 7, 2026
Assumption-free reconstruction of quantum states from measurements is essential for benchmarking and certifying quantum devices, but it remains difficult due to the extensive measurement statistics and experimental resources it demands. An approach t...
Investigation of Hardware Architecture Effects on Quantum Algorithm Performance: A Comparative Hardware Study
Askar Oralkhan, Temirlan Zhaxalykov·Jan 7, 2026
Cloud-accessible quantum processors enable direct execution of quantum algorithms on heterogeneous hardware platforms. Unlike classical systems, however, identical quantum circuits may exhibit substantially different behavior across devices due to ar...
An SU(2n)-valued nonlinear Fourier transform
Michel Alexis, Lars Becker, Diogo Oliveira e Silva +1 more·Jan 7, 2026
We define a nonlinear Fourier transform which maps sequences of contractive $n \times n$ matrices to $SU(2n)$-valued functions on the circle $\mathbb{T}$. We characterize the image of finitely supported sequences and square-summable sequences on the ...
On-Device Deep Reinforcement Learning for Decentralized Task Offloading Performance trade-offs in the training process
Gorka Nieto, Idoia de la Iglesia, Cristina Perfecto +1 more·Jan 7, 2026
Allowing less capable devices to offload computational tasks to more powerful devices or servers enables the development of new applications that may not run correctly on the device itself. Deciding where and why to run each of those applications is ...
Cavity-Driven Multispectral Gain for High-Sensitivity NV Center Magnetometers
Himanshu Kumar, Rahul Gupta, Saikat Ghosh +2 more·Jan 7, 2026
We report a cavity-enabled solid-state magnetometer based on an NV ensemble coupled with a dielectric cavity, achieving 12 pT/$\sqrt{\rm{Hz}}$ sensitivity and a nearly threefold gain from multispectral features. The features originate from cavity-ind...
Experimental Evaluation of a UAV-Mounted LEO Satellite Backhaul for Emergency Connectivity
Mattia Figaro, Francesco Rossato, Alexander Bonora +3 more·Jan 7, 2026
Reliable connectivity is critical for Public Protection and Disaster Relief operations, especially in rural or compromised environments where terrestrial infrastructure is unavailable. In such scenarios, NTNs, and specifically UAVs, are promising can...
Quantum Monte Carlo Simulations for predicting electron-positron pair production via the linear Breit-Wheeler process
Lucas I. Iñigo Gamiz, Óscar Amaro, Efstratios Koukoutsis +1 more·Jan 7, 2026
Quantum computing (QC) has the potential to revolutionise the future of scientific simulations. To harness the capabilities that QC offers, we can integrate it into hybrid quantum-classical simulations, which can boost the capabilities of supercomput...
Conveyor-mode electron shuttling through a T-junction in Si/SiGe
Max Beer, Ran Xue, Lennart Deda +6 more·Jan 7, 2026
Conveyor-mode shuttling in gated Si/SiGe devices enables adiabatic transfer of single electrons, electron patterns and spin qubits confined in quantum dots across several microns with a scalable number of signal lines. To realize their full potential...
In-plane ferromagnetism-driven topological nodal-point superconductivity with tilted Weyl cones
Maciej Bazarnik, Levente Rózsa, Ioannis Ioannidis +11 more·Jan 7, 2026
The potential application of topological superconductivity in quantum transport and quantum information has fueled an intense investigation of hybrid materials with emergent electronic properties, including magnet-superconductor heterostructures. Her...