Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

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33,773

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16,712 papers in 12 months (-57% vs prior quarter)

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33,773 papers found

Verifiable and Collusion-Resistant Multi-Party Quantum Private Set Operations

Zixian Gong, Kun Tian, Yi Zhang +1 more·Jun 26, 2026

Threshold private set intersection (TPSI) allows parties to reveal their intersection only when its cardinality reaches a prescribed threshold. Existing quantum TPSI protocols typically rely on a third party (TP) to interpret the final results, which...

Quantum PhysicsCryptography

End-to-End Learning of Quantum Control on Latent Dynamical Manifold

Jun-Dong Zhong, Zong-Yuan Ge, Feng-Hua Ren +1 more·Jun 26, 2026

Traditional quantum control relies on an iterative "simulate-then-optimize" paradigm, where dynamics simulation and control design are decoupled, leading to substantial computational overhead and limited scalability, particularly in noisy environment...

Quantum Physics

Non-equilibrium quantum thermometry with bosonic samples

Marek Winczewski, Michał Horodecki, Ricard Ravell Rodríguez·Jun 26, 2026

We study low-temperature non-equilibrium quantum thermometry with a bosonic probe: a quantum harmonic oscillator strongly coupled to a bosonic bath at temperature $T$ through a Drude--Ohmic spectral density. We treat the probe--bath dynamics both exa...

Quantum Physics

Co-Optimization of Analog Kolmogorov-Arnold Networks for Low-Power Function Approximation in Flexible Electronics

Paula Carolina Lozano Duarte, Georgios Zervakis, Mehdi Tahoori +1 more·Jun 26, 2026

Wearable devices and Internet of Things (IoT) sensors require on-sensor processing of biosignals and environmental data, including computationally demanding operations such as nonlinear activation functions for neural network inference, sensor calibr...

cs.AREmerging TechNeural Computing

Standard-quantum-limit-surpassing vector polarimetry using Rydberg atoms in an SU(1,1) interferometer

Weiqiang Guan, Yuetao Chen, Jun Zhou +3 more·Jun 26, 2026

Vector polarimetry is an important application frontier for Rydberg-atom-based sensing. While prior research has largely concentrated on developing novel measurement schemes, high-sensitivity vector polarimetry remains an open question. Here we propo...

Quantum Physics

Quantum enhancement of information-mediated energy transfer

Shotaro Oki, Yuki Kadono, Kaito Tojo +2 more·Jun 26, 2026

Thermodynamics of information identifies information flow as a thermodynamic resource, but whether quantum coherence and collective coupling can enhance it at low entropy-production cost remains unresolved. We address this question for interacting op...

cond-mat.stat-mechQuantum Physics

Simulating the Dynamics of Markovian Quantum Processes by Quantum Collision Models on Quantum Computers

Zeqing Wang, Julian D. Teske, Anshuman Bhardwaj +2 more·Jun 26, 2026

Hamiltonian dynamics have been widely implemented on noisy intermediate-scale quantum devices in recent years. In contrast, experimental demonstrations of Markovian quantum dynamics remain limited, because implementing nonunitary evolution on quantum...

Quantum Physics

Quantum LiDAR with non-local modulation

Xiao-Dong Fan, Zhong-Hua Ou, Yun-Ru Fan +13 more·Jun 26, 2026

Quantum light detection and ranging (LiDAR) utilizes quantum entanglement and correlation to improve precision, noise resilience and covertness of target detection. Despite recent advances, the development of a quantum LiDAR system that simultaneousl...

Quantum Physics

Theory of Electron Spin Resonance Scanning Tunneling Microscopy: The First Decade

Saba Taherpour, Denis Janković, Jose Reina-Galvez +2 more·Jun 26, 2026

Electron spin resonance in scanning tunneling microscopy enabled the study of electronic transitions of magnetic impurities on surfaces at the atomic scale. This ESR-STM technique allows to spectroscopically probe and coherently manipulate spins usin...

Mesoscale PhysicsQuantum Physics

Factorization through Lorentz cones

Guillaume Aubrun, Francesca La Piana, Alexander Müller-Hermes·Jun 26, 2026

A pair of proper cones $(\mathsf{C}_1,\mathsf{C}_2)$ is said to have the Lorentz factorization property (LFP) if every $(\mathsf{C}_1,\mathsf{C}_2)$-positive map factors through a direct sum of Lorentzian cones, i.e., cones over Euclidean balls. Clea...

math.FAQuantum Physics

Parameter-Efficient Quantum-Inspired Fast Weight Programmers for Traffic-Matrix Forecasting

Kuo-Chung Peng, Jiun-Cheng Jiang, Chun-Hua Lin +3 more·Jun 26, 2026

Traffic matrices (TMs) capture network-wide origin-destination demand and are central to traffic engineering, yet accurate whole-matrix forecasting remains challenging when prediction must be performed under the memory, update, and training-budget co...

Quantum PhysicsAIcs.LG

Detector-Conditioned Source-Space Nulls and Null-Mask Loss in a Programmable Two-Slit Interferometer

Jianming Wen·Jun 26, 2026

Afshar's double-slit experiment probes wave--particle complementarity by placing a wire grid at the dark fringes of a downstream interference pattern while retaining an imaging basis that appears to preserve which-path information. Here we propose an...

Quantum Physicsphysics.optics

Quantum Dynamic Time Warping for Multivariate Time Series Classification

Diego Alvarez-Estevez, Alejandro Mayorga-Redondo, Eduardo Mosqueira-Rey·Jun 26, 2026

Dynamic Time Warping (DTW) is a cornerstone for time series classification, but its reliance on Euclidean distances fails to capture latent cross-channel correlations in complex multivariate data. We propose a hybrid Quantum Dynamic Time Warping (qDT...

Quantum Physicscs.LG

The quantum instrument monad

Tobias Fritz·Jun 26, 2026

Monads are a ubiquitous structure in functional programming used for modelling computational effects. For example, the state monad models the effect of a computation interacting with a memory system. Here we introduce the quantum instrument monad $\m...

cs.LOcs.PLmath.CTQuantum Physics

Single-sideband-interference twin-field quantum key distribution without global phase locking

Xingjian Li, Bingkun Wang, Jianyong Hu +10 more·Jun 26, 2026

Twin-field quantum key distribution (TF QKD) can overcome the fundamental rate loss limit of repeaterless quantum links, but its practical deployment has long been hindered by the requirement of global phase locking between two independent lasers. By...

Quantum Physics

Industry-ready spin-photon interfaces for hybrid photonic quantum computing

Hêlio Huet, Hubert Lam, Thibaut Pollet +45 more·Jun 26, 2026

Hybrid photonic quantum computers, combining stationary matter qubits and flying photonic qubits, offer an intrinsically networked and resource-efficient route to large-scale, error-corrected quantum computation. Their core components are cavity-coup...

Quantum PhysicsMesoscale Physicsphysics.app-phphysics.optics

No Cloning of Quantum Ensembles

Zhenyu Du, Siyuan Cheng, Qi Zhao +2 more·Jun 26, 2026

Modern quantum physics now enables control of quantum systems at the level of individual trajectories, opening a new frontier that links quantum information theory, quantum many-body physics, and quantum thermodynamics, and uncovers novel non-equilib...

Quantum Physics

Bottleneck Effects and Harmonic-Type Velocity Bounds for Periodic Quantum Walks

Houssam Abdul-Rahman, Thomas A. Jackson, Darren C. Ong·Jun 26, 2026

We prove explicit upper bounds on the propagation velocity of one-dimensional quantum walks with periodic coins of arbitrary period. We treat two complementary settings. First, in a perturbative regime where one transmission parameter is small, we sh...

Mathematical PhysicsQuantum Physics

Fault tolerant computation of the static structure factor and finite size effects

Rishabh Bhardwaj, Alexander Reed Muñoz, Travis E. Jones +1 more·Jun 26, 2026

Fault-tolerant quantum algorithms offer a promising pathway for estimating the ground-state energies of periodic materials that are beyond the practical reach of classical electronic-structure methods. A remaining challenge is finite-size mitigation:...

Quantum Physicscond-mat.mtrl-scicond-mat.str-el

On the generic structures of the protocols for quantum auction and quantum summation and their relation

Kabir Sandhu, Sandeep Mishra, Anirban Pathak·Jun 26, 2026

Secure multi-party computation (SMC) addresses the problem of jointly computing global functions of private inputs while revealing minimal information about individual data. Two prominent examples of SMC tasks are sealed-bid auction and secure multi-...

Quantum Physics
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