Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Fully Quantum Algorithm for the 1-dimensional linear Lattice Boltzmann Method
Mohammed Bediche, Matthijs van Waveren, Denis Ricot +1 more·Jun 15, 2026
A fully quantum algorithm for solving the one-dimensional linear advection-diffusion equation using the Lattice Boltzmann method as a numerical procedure is presented in this work. We start by presenting a state of the art of the current usage of qua...
GreenBox: Prototyping of an Automatic Road Accident Detection System with Real-Time Notification SMS
Júlio Rocha, Salviano Soares, António Valente +1 more·Jun 15, 2026
The Internet of Things (IoT) project, called "GreenBox", proposes the development of a prototype for the detection of road accidents, using sensors and actuators connected to an Arduino Uno and a Global System for Mobile Communications (GSM) card wit...
Impact of ADAS and V2X Penetration Rates on Cooperative Active Safety
M. C. Lucas-Estañ, B. Coll-Perales, M. I. Khan +2 more·Jun 15, 2026
A major driver of connected and automated driving is cooperative active safety. The effectiveness of cooperative safety applications depends on the ability of vehicles to detect traffic safety risks in advance. Such risks can be identified either thr...
Detecting basis-dependent hardware errors through spatio-temporal quantum steering
Hsiang-Wei Huang, Kuo-Feng Chiu, Yi-Te Huang +3 more·Jun 15, 2026
Spatio-temporal quantum steering provides a framework for benchmarking the nonclassicality of general quantum state transfer processes. A central diagnostic is the no-signaling-in-time (NSIT) condition, whose violation can indicate basis-dependent ha...
Worst-case depth hierarchy for shallow quantum circuits
Min-Hsiu Hsieh, Michael de Oliveira, Sathyawageeswar Subramanian +1 more·Jun 15, 2026
Circuit depth is a central resource in complexity theory. While bounded-depth classical circuits admit well-understood hierarchy theorems, the internal structure of constant-depth quantum computation remains comparatively unexplored. We prove an expl...
Real-space spectral functions of three-dimensional billion-size topological non-Hermitian matter with tensor networks
Yitao Sun, Jose L. Lado, Guangze Chen·Jun 15, 2026
Non-Hermitian systems host a wide range of unconventional topological phenomena while large-scale simulations in finite three dimensional systems remain challenging because of the rapidly growing number of sites. In particular, higher-order topologic...
A short proof of the modified Kretschmann-Schlingemann-Werner conjecture
Satvik Singh·Jun 15, 2026
Let $Φ_1, Φ_2 : \mathbb{M}_d(\mathbb{C})\to \mathbb{M}_n(\mathbb{C})$ be two quantum channels with respective Stinespring isometries $V_1, V_2 : \mathbb{C}^{d}\to \mathbb{C}^{n} \otimes \mathbb{C}^{m}$ on any common dilation space $\mathbb{C}^{m}$. W...
Scalable Graph State Generation with O(1) Local Feedforward in Quantum Networks
Xiaoyi Zheng, Chan-Tong Lam, Lin Chen +1 more·Jun 15, 2026
The development of quantum networks faces a key challenge: the contradiction between probabilistic long-range entanglement generation and finite coherence time. Existing routing protocols typically focus on global state computation or path optimizati...
The Proxy Knows Too Much: Sealing LLM API Routers with Attested TEEs
Sipeng Xie, Qianhong Wu, Hengrun Lu +4 more·Jun 15, 2026
Agents increasingly access large language models (LLMs) through API routers. A router terminates the client's transport-layer security session and opens a separate upstream session, so it holds the full interaction in plaintext. This makes the router...
Optimizing resource bounds in direct fidelity estimation
Netanel Barel, Lee Peleg, Yotam Kadish +2 more·Jun 15, 2026
Direct fidelity estimation provides a way to estimate the fidelity between an experimentally prepared state and a desired pure target state without performing full tomography. Two influential formulations were introduced in 2011 by Flammia and Liu an...
Neural network inverse design of nanophotonic scintillators
Nathan Regev, Avner Shultzman, Francis Loignon-Houle +2 more·Jun 15, 2026
Scintillators are materials converting high-energy radiation into optical light, essential in a range of technologies such as medical imaging systems and security scanners. Scintillator development and optimization have remained limited by the comple...
Reconstruction of detector error model for quantum error correction
Cheng Ye, Pan Zhang·Jun 15, 2026
Fault-tolerant quantum computing fundamentally relies on the accurate characterization of circuit-level noise to optimize decoding algorithms. However, extracting complex multi-body error correlations remains challenging. Contemporary greedy inferenc...
Bi-qutrit entangled edge states of positive partial transposes with largest ranks
Kyung Hoon Han, Seung-Hyeok Kye·Jun 15, 2026
Whenever $E$ is an eight dimensional subspace of the bi-qutrit quantum system whose orthogonal complement is spanned by a vector of Schmidt rank three, we show that there exist PPT entangled edge states with the range space $E$ whose partial transpos...
QALM: Escaping Local Minima via Interleaved Exploration and Exploitation in Quantum Circuit Optimization
Aidan Wagner, Mingkuan Xu, Pengyu Liu +2 more·Jun 15, 2026
Quantum circuit optimizers face a fundamental limitation in how they tolerate temporary cost increases. At one extreme, greedy rule-based optimizers immediately apply any cost-reducing transformation, achieving high efficiency but quickly becoming tr...
Efficient Magic State Factory Via Transversal Non-Clifford Gate
I-Chi Chen, Hrushikesh Pramod Patil, Huiyang Zhou +1 more·Jun 15, 2026
Magic-state preparation is a central component of fault-tolerant quantum computing. Recent theoretical and experimental successes in code-switch-based magic-state preparation have underscored the promise of these methods for quantum error correction....
The Distribution Postulate in Algorithmic Bohmian Mechanics
Jeffrey A. Barrett, Eddy Keming Chen, Josiah Lopez-Wild·Jun 15, 2026
In order to make the right empirical predictions Bohmian mechanics requires a special statistical boundary condition -- the distribution postulate -- but it is unclear how best to understand this condition. We show how one might use the theory of alg...
Enhancing Quantum Machine Learning with Anyons
Da Zhang, Wen-Qiang Liu, Zhaohui Wei +1 more·Jun 15, 2026
The power of quantum computing and quantum machine learning relies on harnessing uniquely quantum phenomena as computational resources. While superposition, coherence and entanglement have been central to this effort, the role of particle exchange st...
Bright Emission from Dark Sources in Hyperbolic Media
Evgenii E. Narimanov·Jun 14, 2026
Hyperbolic media enable ultra-strong light-matter interactions through their extreme field localization and small mode volumes, but low-loss realizations are fundamentally limited to the mid-infrared, owing to the long lifetimes of optical phonons in...
Enhanced Sensitivity near a Quantum Exceptional Point in the Absence of Engineered Dissipation
Réouven Assouly, Harry Hanlim Kang, Aziza Almanakly +8 more·Jun 14, 2026
Non-Hermitian systems exhibit phenomena absent from Hermitian systems, including exceptional points (EPs), at which two or more eigenvectors coalesce. Conventional implementations rely on gain and loss, which strongly limit quantum coherence. Here, f...
Readout-Induced Leakage in Superconducting Circuits with Nonlinear Couplings
Sumeru Hazra, Wei Dai, Daniel K. Weiss +3 more·Jun 14, 2026
In superconducting circuits, drive-induced unwanted transitions limit the readout power, thereby constraining readout speed and fidelity. When such transitions excite the qubit into leakage states, they produce correlated errors that are particularly...