Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Purification of quantum trajectories in infinite dimensions
Federico Girotti, Alessandro Vitale·Sep 16, 2025
In this work we exhibit a class of examples that show that the characterization of purification of quantum trajectories in terms of 'dark' subspaces that was proved for finite dimensional systems fails to hold in infinite dimensional ones. Moreover, ...
Superresolution of unequal-brightness thermal sources for stellar interferometry
Chenyu Hu, Ben Wang, Jiandong Zhang +4 more·Sep 16, 2025
Resolving high-contrast targets is a fundamental yet highly challenging task in astronomy. Using quantum estimation theory, we demonstrate that the ultimate limit for estimating the separation between two unequal-brightness thermal sources via interf...
RandomMeas.jl: A Julia Package for Randomized Measurements in Quantum Devices
Andreas Elben, Benoît Vermersch·Sep 16, 2025
We introduce $\texttt{RandomMeas$.$jl}$, a modular and high-performance open-source software package written in Julia for implementing and analyzing randomized measurement protocols in quantum computing. Randomized measurements provide a powerful fra...
Low-complexity CV-QKD system with optical pilot-tone local oscillator synchronization
Samael Sarmiento, Jeison Tabares, Sebastian Etcheverry·Sep 16, 2025
This study presents a comprehensive simulation-based analysis of optical pilot tone generation for local oscillator synchronization in continuous-variable quantum key distribution (CV-QKD) systems using Gaussian-modulated (GM) coherent states. We com...
Ancilla-train quantum algorithm for simulating non-Markovian open quantum systems
Hans Michael Christensen, Johannes Agerskov, Frederik Nathan·Sep 16, 2025
We present a quantum algorithm for simulating open quantum systems coupled to Gaussian environments valid for any configuration and coupling strength. The algorithm is applicable to problems with strongly coupled, or non-Markovian, environments, prob...
Sample-optimal single-copy quantum state tomography via shallow depth measurements
Gyungmin Cho, Dohun Kim·Sep 16, 2025
Quantum state tomography (QST) is one of the fundamental problems in quantum information. Among various metrics, sample complexity is widely used to evaluate QST algorithms. While multi-copy measurements are known to achieve optimal sample complexity...
Extension of the Jordan-Wigner mapping to nonorthogonal spin orbitals for quantum computing application to valence bond approaches
Alessia Marruzzo, Mosè Casalegno, Piero Macchi +4 more·Sep 16, 2025
Quantum computing offers a promising platform to address the computational challenges inherent in quantum chemistry, and particularly in valence bond (VB) methods, which are chemically appealing but suffer from high computational cost due to the use ...
Large Language Model Scaling Laws for Neural Quantum States in Quantum Chemistry
Oliver Knitter, Dan Zhao, Stefan Leichenauer +1 more·Sep 16, 2025
Scaling laws have been used to describe how large language model (LLM) performance scales with model size, training data size, or amount of computational resources. Motivated by the fact that neural quantum states (NQS) has increasingly adopted LLM-b...
Non-Markovian amplitude damping in a central spin model with random couplings
Mehboob Rashid, Rayees A Mala, Saima Bashir +1 more·Sep 16, 2025
Non-Markovian dynamics is central to quantum information processing, as memory effects strongly influence coherence preservation, metrology, and communication. In this work, we investigate the role of stochastic system--bath couplings in shaping non-...
EmuPlat: A Framework-Agnostic Platform for Quantum Hardware Emulation with Validated Transpiler-to-Pulse Pipeline
Jun Ye, Jun Yong Khoo·Sep 16, 2025
We present EmuPlat, a framework-agnostic quantum hardware emulation platform that addresses the interoperability gap between high-level quantum programming frameworks and hardware-specific pulse control systems. Unlike existing solutions that operate...
Symmetry and Topology of Successive Quantum Feedback Control
Junxuan Wen, Zongping Gong, Takahiro Sagawa·Sep 16, 2025
We establish a symmetry classification for a general class of quantum feedback control. For successive feedback control with a non-adaptive sequence of bare measurements (i.e., with positive Kraus operators), we prove that the symmetry classification...
Cavity-Modified Nonequilibrium Fermi's Golden Rule Rate Coefficients from Cavity-Free Inputs
Pouya Khazaei, Eitan Geva·Sep 16, 2025
The Nonequilibrium Fermi's Golden Rule (NE-FGR) provides a convenient theoretical framework for calculating the charge transfer rate between a photoexcited bright donor electronic state and a dark acceptor electronic state, when the nuclear degrees o...
DoubleAgents: Human-Agent Alignment in a Socially Embedded Workflow
Tao Long, Xuanming Zhang, Sitong Wang +2 more·Sep 16, 2025
Aligning agentic AI with user intent is critical for delegating complex, socially embedded tasks, yet user preferences are often implicit, evolving, and difficult to specify upfront. We present DoubleAgents, a system for human-agent alignment in coor...
Stabilizer Perturbation Theory: A Systematic Construction via Schrieffer-Wolff Transformation
Xuzhe Ying, Kangle Li, Hoi Chun Po·Sep 16, 2025
Perturbation theories provide valuable insights on quantum many-body systems. Systems of interacting particles, like electrons, are often treated perturbatively around exactly solvable Gaussian points. Systems of interacting qubits have gained increa...
Erasing, Converting, and Communicating: The Power of Resource-Nongenerating Operations
Xian Shi·Sep 16, 2025
We investigate resource nongenerating operations (RNOs) in both static and dynamical quantum resource theories. For the static scenarios, we derive a sufficient condition for state transformations under RNOs. Then we construct a dynamical resource th...
Unidirectional and collective emission of integrated quantum emitters
Jun Ren, Meng-Jia Chu, Z. D. Wang·Sep 16, 2025
Unidirectional emission holds significant potential for advancing integrated photonics and quantum information technologies. However, the inherent randomness of spontaneous emission fundamentally makes its efficient realization rather challenging. To...
Toward Heisenberg Scaling in Non-Hermitian Metrology at the Quantum Regime
Xinglei Yu, Xinzhi Zhao, Liangsheng Li +4 more·Sep 16, 2025
Non-Hermitian quantum metrology, an emerging field at the intersection of quantum estimation and non-Hermitian physics, holds promise for revolutionizing precision measurement. Here, we present a comprehensive investigation of non-Hermitian quantum p...
Pulsed Generation of Continuous-Variable Cluster States in a Phononic Quantum Network
A. Govindarajan, M. Mazzei, H. Wang +1 more·Sep 16, 2025
Cluster states are multipartite entangled states that are maximally connected and resilient to decoherence, making them valuable resources for quantum information processing. Continuous-variable (CV) cluster states have been extensively investigated ...
SLasH-DSA: Breaking SLH-DSA Using an Extensible End-To-End Rowhammer Framework
Jeremy Boy, Antoon Purnal, Anna Pätschke +2 more·Sep 16, 2025
As quantum computing advances, Post-Quantum Cryptography (PQC) schemes are adopted to replace classical algorithms. Among them is the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA) that was recently standardized by NIST and is favored for...
Exploiting Timing Side-Channels in Quantum Circuits Simulation Via ML-Based Methods
Ben Dong, Hui Feng, Qian Wang·Sep 16, 2025
As quantum computing advances, quantum circuit simulators serve as critical tools to bridge the current gap caused by limited quantum hardware availability. These simulators are typically deployed on cloud platforms, where users submit proprietary ci...