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

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33,592 papers found

Continuous Time Quantum Walk Propagation for Irregular Temporal Graph Forecasting

Jiaqi Sun, Tianhao Li, Zhihao Bian·Jul 19, 2026

Continuous time quantum walks built on graph Laplacians produce non monotonic graph propagation features through quantum interference during evolution, which classical diffusion cannot achieve. Such walks deliver a physically motivated propagation sc...

Quantum Physics

Auditing Question-Order Effects in Large Language Models with the QQ Equality: Mechanism Characterization and a Saturation Caveat

Pilsung Kang·Jul 19, 2026

Human survey respondents exhibit question-order effects that satisfy the QQ (quantum question) equality, an a priori, parameter-free prediction of the projective quantum question-order model. We develop the QQ equality into an audit criterion for seq...

cs.CLAIQuantum Physicsstat.ME

Relativistic quantum teleportation protected by the anti-Unruh effect

Reza Hamzehofi, Davood Afshar, Mehrzad Ashrafpour·Jul 19, 2026

We investigate standard quantum teleportation in a relativistic setting where one participant, Rob, undergoes uniform acceleration while Alice remains inertial. Rob interacts locally with a massive scalar field modeled by an Unruh-DeWitt detector. We...

Quantum Physicsgr-qc

Heralded Leakage Detection with Preserved Computational-State Coherence in a Fixed-Frequency Transmon

Takeaki Miyamura, Zhiling Wang, Peter A. Spring +5 more·Jul 19, 2026

Leakage out of the computational subspace is a major error mechanism in superconducting quantum processors. Detecting leakage without disturbing the encoded quantum information can provide a heralded error signal that error-correction decoders exploi...

Quantum Physics

Multi-level Random-Telegraph Noise Mitigation using a Single Spectator Qubit

Yanan Liu, Hongting Song, Areeya Chantasri +1 more·Jul 19, 2026

Preserving quantum coherence in the presence of environmental noise is one of the principal challenges for quantum technologies. Noise mitigation using spectator qubits (SQs) has recently emerged as a promising approach, enabling indirect probing of ...

Quantum Physics

QBism Logic

Kenji Tokuo·Jul 19, 2026

QBism interprets quantum theory as a normative discipline for an agent's probability assignments and their revision across possible experience. This paper develops a logical formalization of that picture. A well-formed core datum consists of an admis...

Quantum Physicsmath.LO

Blind Transpiler: An open-source library for universally blind and homomorphic quantum computations

Mohit Joshi, Manoj Kumar Mishra, S. Karthikeyan·Jul 19, 2026

Blind quantum computation is a cryptographic primitive that allows a limited-capability client to delegate its complex computation to a remote server without revealing its data and/or computation. This branch of quantum cryptography has been bifurcat...

Quantum Physics

GHZ-Equivalent State Distribution in Quantum Networks: Reducing Decoherence and Quantum Resource Consumption

Chun-Hsiang Wang, Chia-Wei Tsai·Jul 19, 2026

This study proposes a novel scheme for distributing GHZ-equivalent states across repeater-based quantum networks, with particular focus on the analysis and mitigation of decoherence effects during transmission. The proposed scheme enables remote user...

Quantum Physicscs.NI

ThRIve: Thermally Robust CNN Inference via Low-Rank Adaptation in Heterogeneous PIM Architectures

Vibhanshu Sharma, Pratyush Dhingra, Janardhan Rao Doppa +1 more·Jul 19, 2026

Processing-In-Memory (PIM) has emerged as a promising technology for accelerating machine learning (ML) workloads. Specifically, non-volatile memory-based PIM architectures have enabled effective ML acceleration due to their ability to perform energy...

cs.AREmerging Techcs.LG

Against Many Worlds

Emily Adlam, Jacob A. Barandes·Jul 19, 2026

Any viable interpretation of quantum theory needs to account for the Born rule, from which the theory gets its probabilistic empirical predictions. In this paper, we give an overview of possible approaches to this problem in the context of the Many W...

Quantum Physicsphysics.hist-ph

quchip: A Differentiable Toolkit for Modeling Quantum Devices

Ibraheem AlYousef·Jul 19, 2026

Predictive modeling of a superconducting quantum chip requires more than a Hamiltonian: the model must connect device physics, control-line transformations, chosen frames and approximations, dissipation, and measured observables. We present quchip, a...

Quantum Physics

Rigorous characterization of continuous-variable quantum states via optical parametric amplifiers

Manthan Badbaria, Fumiya Hanamura, Maxime Garnier +2 more·Jul 19, 2026

Characterizing non-Gaussian quantum states is of paramount importance for continuous-variable quantum information processing, yet conventional homodyne-measurement-based state tomography remains limited by optical loss, detector efficiency, and measu...

Quantum Physics

Encoding Choices and Fault-Tolerant Resource Estimates for Digital Quantum Hamiltonian Descent

Chenxu Liu, Meng Wang, Mingze Li +3 more·Jul 18, 2026

Quantum Hamiltonian descent (QHD) formulates continuous optimization as time-dependent quantum dynamics, where a kinetic term drives exploration and a potential term encodes the objective function. Digital implementations of QHD require encoding the ...

Quantum Physics

How many degrees of freedom describe a quantum N-particle state?

Matthew J. Lake, Marek L. Miller·Jul 18, 2026

In Newtonian spacetime, the canonical description of a classical $N$-particle system requires $3N$ degrees of freedom. Not all of these are physical, however, since the conservation of the net momentum implies that only $3(N-1)$ accelerations are ind...

Quantum Physicshep-ph

Entanglement Quantification via Symmetric Extensions: A Resource Theory Hierarchy

Enmin Shao, Lin Chen, Huixia He·Jul 18, 2026

We introduce a hierarchy of entanglement measures Ek based on k-symmetric PPT extensions. Each Ek, defined via a minimal eigenvalue shift and computed by semidefinite programming, is faithful, convex, and monotone under free operations. The hierarchy...

Quantum Physics

Operational Relation Between One-Time and Two-Time Work Protocols and Measurement-Resolution-Induced Transitions in Quantum Work Statistics

Daniel Alonso, Antonia Ruiz-García·Jul 18, 2026

We establish a direct operational connection between the one-time measurement (OTM) and two-time measurement (TTM) protocols for quantum work statistics, showing that OTM work values, including coherence signatures, can be reconstructed from standard...

Quantum Physics

Bound, Scattering, and Resonance States of the Symmetric Woods--Saxon Potential in Dunkl Quantum Mechanic

Mebarek Heddar, Can Ertuğay, Bekir Can Lütfüoğlu·Jul 18, 2026

We present the first unified analytical description of the bound, scattering, and Gamow (metastable) resonance states of the one-dimensional symmetric Woods--Saxon potential within the framework of Dunkl quantum mechanics, establishing a single analy...

Quantum Physics

A Reponse to the Sheldon Goldstein Objection to a Series of Covariant Relativistic Bohmian Models

Sergio Hernández-Zapata, Gerardo Ruiz-Chavarría·Jul 18, 2026

In this work we try to answer a very important objection to the Covariant Bohmian Models type Nikolić and Hernández-Zapata that was formulated by the american physicist Sheldon Goldstein (private communication, 2010) about the imposibility to interpr...

Quantum Physics

Precision dynamics of resonantly enhanced optical parametric amplifiers

Evan D. Hall·Jul 18, 2026

Optical parametric amplification is a crucial technology for the production of continuous-wave squeezed vacuum, which is now applied to gravitational-wave interferometry and other highly sensitive measurements of optical phase. The amplifiers employe...

Quantum Physics

Bargmann invariants and local unitary equivalence

Minghui Ma, Rui Shi·Jul 18, 2026

In this paper, we study the local unitary equivalence of quantum states on $\mathbb{C}^n\otimes\mathbb{C}^n$, which is an important notion in quantum information theory. For the case $n=2$, the local unitary orbits of two-qubit states are completely ...

Quantum Physicsmath.OA
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