Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
A Comparative Analysis of Ising Formulations for Neuromorphic Maximum-Likelihood Channel Decoding
George N. Katsaros, Morgan Sabine, Konstantinos Nikitopoulos·Jul 14, 2026
Neuromorphic computing has so far been driven predominantly by machine-learning workloads, yet its underlying properties also make it particularly well suited to combinatorial optimization problems expressed in Ising or QUBO form. While neuromorphic ...
A maximal Hohenberg-Kohn theorem for non-interacting systems via potential theory
Thiago Carvalho Corso·Jul 14, 2026
In this paper, we show that for Schrödinger operators with weakly correlated ground states, the Hohenberg-Kohn theorem holds within the maximal class of form-bounded external potentials if and only if the single-particle density is positive quasi-eve...
Time-independent counterdiabatic driving for emergent two-level subspaces in many-body systems
Simon Dengis, Peter Schlagheck·Jul 14, 2026
We show that geodesic motion in the Riemannian manifold of quantum states provides a direct route to time-independent counterdiabatic driving. Using the relation between the counterdiabatic Hamiltonian and the quantum metric tensor, we prove that a c...
Reproducible Reservoir Computing with Thermally Driven Superparamagnets: Controlling Temperature Sensitivity
Zhengfei Chen, Alex Welbourne, Matthew O. A. Ellis +3 more·Jul 14, 2026
Unconventional computing systems must demonstrate robust performance under real-world environmental conditions to enable practical deployments. We have recently proposed superparamagnetic nanodot ensembles driven by strain-induced magnetoelectric cou...
Thermal Suppression of Dynamical Quantum Phase Transitions in Finite-Dimensional Systems A Quasi-Hermitian Framework
Jia-Chen Tang, Xu-Yang Hou, Ming-Zhang Wang +1 more·Jul 14, 2026
We investigate dynamical quantum phase transitions (DQPTs) in finite-dimensional systems prepared in thermal equilibrium states and subjected to a sudden quench. A mixed-state Loschmidt amplitude is constructed from first principles within a metric-s...
End-to-End Quantum Key Distribution Across Hybrid Fiber and Free-Space Links with All-Optical Encoding Conversion
Khen Cohen, Tomer Nahum, Michael Tzukran +6 more·Jul 14, 2026
Quantum key distribution (QKD) promises information-theoretically secure communication, but future networks must bridge fiber and free-space links that naturally employ different photonic encodings, namely time-bin in fiber and polarization in free s...
Detecting Phishing in Ethereum Networks using Quantum Machine Learning
Sai Sakunthala Guddanti, Anupama Ray, Mrunal Arun Kumavat +1 more·Jul 14, 2026
This article explores the potential of Quantum Machine Learning (QML), specifically assessing a Quantum Support Vector Machine (QSVM) and a Variational Quantum Classifier (VQC) for detecting anomalies in real-world financial transaction data. While t...
The Resolution of the Identity as a Generator of Exact Integral Identities: A Coherent-State Approach
Ghasem Asadi Cordshooli, Mehdi Mirzaee·Jul 14, 2026
The resolution of the identity is typically utilized as a passive representation tool in standard quantum mechanics textbooks. In this paper, we reinterpret this traditional perspective by introducing the resolution of the identity associated with Gl...
A Quantum Computing Approach to Track Reconstruction in Strip-Type Detectors
Seungyeob Jwa, Hyunyong Kim, Jangho Kim +1 more·Jul 14, 2026
This study investigates the use of quantum annealing for particle track reconstruction in strip-type gaseous detectors. In such detectors, ghost hits and multiple hit combinations can turn pattern recognition into a combinatorial optimization problem...
A Variational Surrogate Approach to Finite-Horizon Quantum Control via Hardware-Efficient Ansatz
Nahid Binandeh Dehaghani, Rafal Wisniewski, A. Pedro Aguiar·Jul 14, 2026
We present a variational quantum framework for finite-horizon quantum control based on hardware-efficient ansätze. The objective is to steer a quantum system from a given initial state to a desired target state over a fixed time horizon by minimizing...
When Close Enough Is Not Enough: Autoregressive Drift in Quantum Circuit Synthesis
Mehdi Saeedi, Eddie Richter, Paul Hartke·Jul 14, 2026
Quantum circuit optimization for fault-tolerant computing requires exact functional equivalence while minimizing expensive non-Clifford resources such as T gates. We study this problem using a compact 44.8M-parameter encoder-decoder transformer with ...
Practical Judgment, Virtue, and Intuition in the Use of Opaque AI-Enabled Systems
Nathan G. Wood, Andrew P. Rebera·Jul 14, 2026
AI-enabled systems are seeing increasing deployment across numerous domains, with many being "black boxes" with respect to core functions and capabilities. I.e., many systems take inputs and give outputs, but without users having any ability to see h...
Traceable In Situ Microwave Power Measurement at the Cryogenic Device Plane in a Dilution Refrigerator
Paolo Panetta, Andrea Celotto, Alessandro Alocco +7 more·Jul 14, 2026
Accurate knowledge of the microwave power delivered to a cryogenic device under test (DUT) is essential for the characterization and operation of superconducting quantum circuits. However, this information is difficult to obtain inside dilution refri...
Emergence of drifted diffusion in quantum walks with subspace restart
Liwei Qiao, Ruoyu Yin, Wei Zhang·Jul 14, 2026
Restart of a quantum process is typically modeled as a global reinitialization that erases the system's entire history. Here we introduce subspace restart, a protocol that periodically resets only the internal degrees of freedom while preserving the ...
Thermally Activated Long-Range Entanglement from Non-Abelian Conservation Laws
Shuai Zeng·Jul 14, 2026
Thermal noise ordinarily suppresses quantum entanglement. We show that a strong non-Abelian conservation law can convert local thermal fluctuations into an unbounded operational resource. For a broad class of finite-range $SU(2)$-invariant spin chain...
Quantum PDE Solvers in Practice: Application-Driven Benchmarking of the Heat Equation
Mahmoud Elkarargy, Abdelaziz Rahwan, Abdelrahman Elsayed +1 more·Jul 14, 2026
Quantum PDE solvers are difficult to evaluate in practice because published studies use different discretizations, output models, reconstruction rules, and hardware assumptions. We present a reproducible, application-driven benchmark for the 1-D Diri...
Entanglement and Optical Nonreciprocity in spontaneous Raman Scattering
Frank Schlawin·Jul 14, 2026
Inelastic light scattering is a central tool for sample characterization and label-free imaging across the physical and life sciences. Recent work has suggested that scattered light can also exhibit nonclassical correlations. Here, we develop a micro...
Collective-State Preparation in a Subwavelength Triangular Trimer Using SUPER Excitation
Thomas Nunner, Johannes Kerber, Helmut Ritsch +1 more·Jul 14, 2026
The Swing-UP of quantum EmitteR population (SUPER) scheme has recently been proposed as a deterministic method for the preparation of collective radiative states in two strongly dipole-coupled quantum emitters (Phys. Rev. Res. \textbf{8}, 013179 (202...
Quantum metrology with undetected mid-infrared photons for applied non-destructive testing
Paul Gattinger, Andreas W. Schell, Maja Buchegger +2 more·Jul 14, 2026
Metrology with undetected photons is an emerging technique that leverages quantum effects and photon correlations (entanglement) to retrieve valuable information in a target spectral range (e.g., mid-infrared, mid-IR) using measurements in an easily ...
James-Stein estimation for quantum sensing schemes
Luke Alexander Rhodes, Sean William Moore, Jacob A. Dunningham·Jul 14, 2026
Quantum metrology protocols typically consist of four steps: state preparation, evolution, measurement, and data processing. Often, the first three steps are prioritised when designing a scheme as they contain all the quantum elements. The data analy...