Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Probing Lorentz-invariance-violation with quantum coherence of Unruh-DeWitt detector
Yihao Wu, Xiaobao Liu, Zehua Tian·Jul 17, 2026
Testing Lorentz invariance violation (LIV) is notoriously difficult, as its characteristic energy scale, $M_\star$, in modified dispersion relations typically lies beyond current experimental reach. To enable a low-energy probe, we investigate the qu...
Quantum states supported by matroids
Xiaowei Huang, Fei Shi, Lijun Zhang +1 more·Jul 17, 2026
In this work, we establish a structural correspondence between quantum states and matroid theory. This connection demonstrates that key properties of quantum states, including entanglement and measurement, can be characterized in purely combinatorial...
Benchmarking Hybrid Quantum-Classical Algorithms for Power Grid Optimization Problems
Igor Gaidai, Rick Mukherjee·Jul 17, 2026
Alternating Current Optimal Power Flow Unit Commitment (AC-OPF-UC) is a difficult mixed-integer nonlinear optimization problem that combines binary generator commitment decisions with nonconvex continuous AC power-flow constraints. In this work, we i...
Microscopic Side Information Controls Ordered Hayden--Preskill Recovery
Joao V. R. Alencar, Allan R. P. Moreira, Joao B. R. Silva·Jul 17, 2026
In the Hayden--Preskill protocol, the decoder is usually assumed to know the microscopic identity of the collected output qubits. We study what happens when these labels are unavailable and only the relative order of the received qubits is preserved....
The Complexity of Dynamical Correlators: Operator Shadows and Exponential Learning Separations
Shao-Hen Chiew, Armando Angrisani, Zoe Holmes·Jul 16, 2026
Quantum platforms can realize many-body dynamics beyond classical simulation yet complete readout remains intractable: the cost of extracting accessible information scales exponentially with system size. Classical shadows and Bell sampling offer scal...
Efficient routing and spectrum allocation in arbitrary flex-grid entanglement networks
Zachary Goisman, Matthew L. Stevens, Maxwell Goisman +7 more·Jul 16, 2026
As practical quantum networks approach large-scale deployment, the need for efficient user-to-user frequency allocation is increasing, yet current approaches only provide partial solutions to the routing and spectrum allocation problem for an arbitra...
Generation and detection of squeezed light on a single silicon photonic chip
Oliver M. Green, Bethany Puzio, Rowan A. Hoggarth +5 more·Jul 16, 2026
The ability to generate and detect quantum states of light on a single integrated photonic device is essential to scale quantum photonics into useful quantum technologies. Integrating the required capabilities into complementary-metal-oxide-semicondu...
From hyperplanes to hyperellipsoids: characterizing the inherent interpretability of linear and single-qubit mixed-state binary classification models
Kaitlin Gili·Jul 16, 2026
We characterize and compare the inherent interpretability offerings of a standard linear model with a single qubit mixed state model for the task of supervised binary classification. A side by side comparison reveals that a single qubit mixed state m...
Performance Model for Hybrid Quantum-Classical Workflows
Pooja Rao, Dimitar Trenev, Jerome Gonthier +13 more·Jul 16, 2026
Hybrid quantum-classical workflows are expected to underpin practical quantum computing applications, yet the quantum and HPC communities lack a shared framework for reasoning about where and when their integration requirements matter most. Such a fr...
STAR: Astrocyte-Inspired State-Augmented Repair for Supervised Memristive AI Hardware Systems
Yusuf Ahmed Khan, Zhuangyu Han, Abhronil Sengupta·Jul 16, 2026
Memristive crossbar arrays have emerged as a promising platform for efficient on-chip learning, enabling local learning rules such as Equilibrium Propagation (EP) to be realized without the memory overhead of conventional backpropagation. However, as...
Boosting State Discrimination in Quantum Brownian Motion Channel via Memory-Induced Coherence Preservation
João C. P. Porto, Pedro R. Dieguez, Carlos H. S. Vieira +3 more·Jul 16, 2026
Preserving quantum resources in dissipative environments is a fundamental challenge in quantum information processing. While environmental interactions usually degrade quantum resources, we theoretically show that in a Quantum Brownian Motion (QBM) c...
Assessing Learning Processes with Multimodal Data in Virtual Reality Learning Environments
Eileen McGivney, Oluwatomilade Olarinde, Erica Kleinman +6 more·Jul 16, 2026
Assessing learning in virtual reality (VR) environments typically relied on traditional pre-post content retention tests, revealing little about the process of learnng within such immersive environments. Multimodal data from player activity in VR is ...
Saturating the Bayesian Nagaoka-Hayashi bound within numerical precision for the depolarization SU(2) rotation channel
Leo Bia, Christos N. Gagatsos·Jul 16, 2026
The Bayesian Nagaoka--Hayashi (NH) bound is a semidefinite lower bound on the Bayes risk of multiparameter estimation, tighter than the Bayesian symmertic logarithmic derivative (SLD) Cramér--Rao bounds, and whether it can be attained is an open prob...
The Trinity of Markovian Quantum Thermodynamics: Unifying the Axiomatic, Microscopic, and Operational Paradigms
Yutong Luo, Jakub Czartowski, Felix Hubmann +2 more·Jul 16, 2026
Thermodynamics imposes fundamental constraints on the evolution of quantum systems. These constraints and their dynamical consequences have been formulated within distinct paradigms, including axiomatic approaches based on quantum master equations, m...
Spectral amplification for ground-state energy estimation of electronic structure in first quantization
Alicja Dutkiewicz, Alec F. White, Guang Hao Low +6 more·Jul 16, 2026
We demonstrate an asymptotic gate complexity improvement in first-quantized ground-state energy estimation of electronic structure Hamiltonians in a plane wave basis by employing the sum-of-squares spectral gap amplification protocol. The improvement...
Fragmented ETH: Prethermalization, Timescales, and Ensemble Inequivalence
C. L. Sriram, Soumya Kanti Pal, Lea F. Santos·Jul 16, 2026
We investigate how finite quantum systems with strong long-range interactions approach thermal equilibrium. Nearly conserved quantities inherited from the fully connected limit fragment the Hilbert space and give rise to a many-body spectrum split in...
The Paradox of the Third Particle is classical
Ladina Hausmann, Renato Renner·Jul 16, 2026
The Paradox of the Third Particle arises when particles are described relative to one of them serving as a reference frame. Although it is typically attributed to quantum superpositions, we show that the paradox and its ramifications$\unicode{x2014}$...
Causality from the spectrum: Emergence of causal order from process-matrix mereology
Varun Kushwaha, Nicolas Loizeau, Alexei Grinbaum +1 more·Jul 16, 2026
In Hamiltonian systems, the only basis-independent quantity is the spectrum. Given a spectrum, quantum mereology seeks preferred tensor-product decompositions into local subsystems, leading to the emergence of locality. Causal order, however, remains...
Non-Hermitian Quantum Adiabatic Algorithm
Zi-Bo Jin, Yi Zhang·Jul 16, 2026
Non-Hermitian systems offer new opportunities for quantum optimization and computation. Here, we show that non-Hermitian quantum adiabatic algorithms require not only a real, gapped spectrum, but also a stable pseudospectrum. We propose a novel frame...
Locality of deep thermalisation through the lens of entanglement teleportation
Saptarshi Mandal, Alan Sherry, Sthitadhi Roy·Jul 16, 2026
Deep thermalisation characterises the emergence of universal quantum state ensembles on subsystems due to projective measurements on their complement. We study the notion of locality, or lack thereof, in this phenomenon by considering a subsystem par...