Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A unified framework for anomalous boson bunching
Léo Pioge, Leonardo Novo, Nicolas J. Cerf·Jul 21, 2026
Anomalous bunching is a paradoxical quantum interferometric phenomenon in which partially distinguishable photons exhibit a higher probability of bunching into two or more modes than fully indistinguishable photons [Nat. Photonics 17, 702 (2023)]. Wh...
Quantum resonance-enhanced performance of quantum battery
Ankita Mazumdar, Shashi C. L. Srivastava, Sanku Paul·Jul 21, 2026
Quantum resonance arising whenever the ratio of the intrinsic system frequency to the driving frequency becomes a rational number has been demonstrated to generate super-linear entanglement, enhance transport, quantum metrology performance and commun...
Confinement Versus Screening in the Schwinger Model on AdS$_2$ from Bosonization and Tensor Networks
Sriram Bharadwaj, Jack Isen, Zhong-Bo Kang·Jul 21, 2026
We analyze confinement and screening in single-flavor quantum electrodynamics (QED$_2$) on two-dimensional anti-de Sitter space (AdS$_2$), with and without a Schwarzschild black hole, both in the continuum and on the lattice. The theory is formulated...
Quantum Synchronization
Parvinder Solanki, Albert Cabot, Fernando Iemini +8 more·Jul 21, 2026
Natural and engineered classical systems are replete with examples of synchronization, understood as the adjustment of rhythms of physical systems. Such synchronization is at the heart of the stability of several classical technologies, such as mecha...
Dark matter searches with a 13 meV threshold superconducting sensor array
Christopher Albert, Lanqing Yuan, Jacob Harris +13 more·Jul 21, 2026
Many well-motivated dark matter models predict meV-scale energy deposits in interactions with terrestrial experiments, but this regime is challenging to probe due to a lack of mature single-quantum detectors. Here we report results from QUALIPHIDE (Q...
SoK: Adversarial Robustness of the Variational Quantum Eigensolver via Red-Teaming
Ahmed Azaz Humdoon, Cheng Chu, Lei Jiang +2 more·Jul 21, 2026
The Variational Quantum Eigensolver (VQE) is a leading algorithm for estimating molecular ground-state energies on near-term quantum hardware, with applications spanning quantum chemistry, materials science, and drug discovery. As VQE workloads are i...
CircuitKIT : Circuit Discovery, Evaluation, and Application Toolkit for Mechanistic Interpretability
Pratinav Seth, Hem Gosalia, Aditya Kasliwal +1 more·Jul 21, 2026
Circuit analysis can support not only model explanation but also downstream interventions such as pruning, editing, steering, and selective fine-tuning. However, conducting such analyses currently requires stitching together separate implementations ...
Distributed Delay-Based BIST for Mixed-Signal Circuits in Flexible Electronics
Paula Carolina Lozano Duarte, Sule Ozev, Mehdi Tahoori·Jul 21, 2026
Flexible electronics (FE) based on indium gallium zinc oxide thin-film transistors (IGZO-TFTs) are emerging for ultra-low-power wearable applications. However, lack of packaging, limited pins, and high device variability make conventional Automatic T...
Perfect state transfer in Grover walks on normal Cayley graphs
Koushik Bhakta, Bikash Bhattacharjya·Jul 21, 2026
A Cayley graph $\operatorname{Cay}(Γ,S)$ over a finite group $Γ$ is said to be normal if its connection set $S$ is a union of some conjugacy classes of $Γ$. This paper investigates perfect state transfer in Grover walks on normal Cayley graphs. The G...
A general estimation framework for continuous-variable systems
Luca Innocenti, Simone Artini, Diana A. Chisholm +5 more·Jul 21, 2026
We show that informational completeness, while sufficient to have a bijection between ideal measurement probabilities and quantum states, does not guarantee statistically stable reconstruction from finite measurement data. To address this problem, we...
Steady States of a Single Trapped-Ion Spin Coupled to an Engineered Non-Markovian Bath
Anthony Vogliano, Lewis Hahn, Fabien Lefebvre +5 more·Jul 21, 2026
Quantum simulation of open quantum systems offers a pathway towards better understanding various non-equilibrium physics that would otherwise be challenging to study. While most open quantum systems studied are modeled as being memory-less (obeying t...
Gaussian Boson Sampling for Asset Clustering in Statistical Arbitrage Portfolios
Dayne Marcus Lopena, Daniel Buguks, Zhenghao Li +7 more·Jul 21, 2026
Gaussian Boson Sampling (GBS) provides a native photonic quantum heuristic for sampling dense subgraphs from adjacency matrices, offering a scalable physical approach to combinatorial graph search problems. Simultaneously, correlation matrix clusteri...
Efficient quantum transport in disordered Floquet networks
Hlér Kristjánsson, Jonathan Brugger, Gabriel Dufour +2 more·Jul 21, 2026
We propose a mechanism for fast and efficient quantum transport through disordered networks with variable on-site energies, inspired by photosynthetic complexes. The mechanism relies on an interplay between inter-site couplings of the network and dri...
The Limits of Quantum Computers for Power Flow
Cameron Khanpour, Samuel Talkington·Jul 21, 2026
This letter proves realistic grid properties limit the applicability of quantum computers for power flow. Grids that split into two large regions meeting at only a few buses, common in transmission networks, force the pseudo condition number of the D...
Teleportation Game: Quantum Teleportation in Multi-Agent Systems for Interactive Music
Eduardo Reck Miranda, Scott Yeiichi Oshiro·Jul 21, 2026
This paper introduces an interactive music system with quantum musical agents that communicate by teleporting quantum states to one another. Human performers interact in real time with agents whose melodic and rhythmic behaviours are encoded as quant...
Dynamical correlation functions of extensive charges after global quantum quenches
Riccardo Travaglino, Katja Klobas, Bruno Bertini +1 more·Jul 21, 2026
We investigate the $n$-time cumulant generating function (or $n$-Full Counting Statistics, $n$-FCS) of extensive $U(1)$ charges following a quantum quench. Exploiting space-time duality we characterise this function when evolving from initial states ...
Experimental quantum cryptography with single photons and imperfect devices
Aodhán Corrigan, Koray Kaymazlar, Zhiyao Wang +9 more·Jul 21, 2026
Quantum key distribution (QKD) allows for provably secure key distribution between two trusted parties. Because the security and performance of QKD protocols rely on devices that behave according to specific assumptions, idealized or inaccurate assum...
Bound state solutions of the Schrödinger equation for the atomic systems interacting with the radial screened Coulomb potential: analytical approximation methods
Fatma Zohra Khaled, Mustafa Moumni, Mokhtar Falek·Jul 21, 2026
We investigate the bound state properties of the hydrogen-like atoms in the radial screened Coulomb potential (RSCP). using three complementary analytical approaches - expectation values with Coulomb and Kratzer reference states, variational optimiza...
Simultaneous calibration of rotation and phase errors in a single experiment
Tien D. Nguyen, Hung Q. Nguyen·Jul 21, 2026
In weakly anharmonic qubits, coherent control errors take two generic forms -- over/under-rotation and phase errors -- whose suppression normally requires iterated experiments. We show that, for any symmetric $π/2$ pulse in the weak-driving regime, b...
The Thermodynamic Geometry of Conditional Control
J. G. G. de Oliveira, M. E. R. Filippetto, T. A. B. Pinto Silva +2 more·Jul 21, 2026
Information is widely regarded as the resource underlying the thermodynamic advantages enabled by conditional control. We show, however, that informational quantities such as Holevo information and accessible distinguishability, although constraining...