Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Generation of Quantum Entanglement in Autonomous Thermal Machines: Effects of Non-Markovianity, Hilbert Space Structure, and Quantum Coherence
Achraf Khoudiri, Khadija El Anouz, Abderrahim El Allati·Aug 25, 2025
We present a theoretical investigation of entanglement generation in an external quantum system via interaction with a quantum autonomous thermal machine (QATM) under non-Markovian dynamics. The QATM, composed of two qubits each coupled to independen...
Adaptive Quantized Planetary Crater Detection System for Autonomous Space Exploration
Aditri Paul, Archan Paul·Aug 25, 2025
Autonomous planetary exploration demands real-time, high-fidelity environmental perception. Standard deep learning models require massive computational resources. Conversely, space-qualified onboard computers operate under strict power, thermal, and ...
Polynomial-time Extraction of Entanglement Resources
Si-Yi Chen, Angela Sara Cacciapuoti, Marcello Caleffi·Aug 25, 2025
The extraction of EPR pairs and n-qubits GHZ states among remote nodes in quantum networks constitutes the resource primitives for end-to-end and on-demand communications. However, the Bell-VM problem, which determines whether a given graph state can...
Beyond Traditional Quantum Routing
Si-Yi Chen, Angela Sara Cacciapuoti, Marcello Caleffi·Aug 25, 2025
Existing quantum routing implicitly mimics classical routing principles, with finding the ``best'' path (aka pathfinding), according to a selected routing metric, as a core mechanism for establishing end-to-end entanglement. However, optimal pathfind...
A Metropolitan-scale Multiplexed Quantum Repeater with Bell Nonlocality
Tian-Xiang Zhu, Chao Zhang, Zhong-Wen Ou +7 more·Aug 25, 2025
Quantum repeaters can overcome exponential photon loss in optical fibers, enabling heralded entanglement between distant quantum memories. The definitive benchmark for this entanglement is Bell nonlocality; however, recent metropolitan-scale demonstr...
Steiner Traveling Salesman Problem with Time Windows and Pickup-Delivery: integrating classical and quantum optimization
Alessia Ciacco, Francesca Guerriero, Eneko Osaba·Aug 25, 2025
We propose the Steiner Traveling Salesman Problem with Time Windows and Pickup and Delivery, an advanced and practical extension of classical routing models. This variant integrates the characteristics of the Steiner Traveling Salesman Problem with t...
Sub-Riemannian geometry of measurement based quantum computation
Lukas Hantzko, Arnab Adhikary, Robert Raussendorf·Aug 25, 2025
The computational power of quantum phases of matter with symmetry can be accessed through local measurements, but what is the most efficient way of doing so? In this work, we show that minimizing operational resources in measurement-based quantum com...
Decoherence-free interaction and maximally entangled state generation in giant-atom semi-infinite waveguide systems
Jie Liu, Yue Cai, Lei Tan·Aug 25, 2025
Giant atoms are artificial atoms that can couple to a waveguide non-locally. Previous works have shown that two giant atoms in a braided configuration can interact through one-dimensional (1D) infinite and chiral waveguides, with both individual and ...
Determination of ground states of one-dimensional quantum systems using the cluster iTEBD method
Tao Yang, Rui Wang, Z. Y. Xie +1 more·Aug 25, 2025
Within the framework of imaginary-time evolution for matrix product states, we introduce a cluster version of the infinite time-evolving block decimation algorithm for simulating quantum many-body systems, addressing the computational accuracy challe...
Numerical implementation of the partial secular approximation and unified master equation in structured open quantum systems
Antti Vaaranta, Marco Cattaneo·Aug 25, 2025
The Markovian dynamics of open quantum systems is typically described through Lindblad equations, which are derived from the Redfield equation via the full secular approximation. The latter neglects the rotating terms in the master equation correspon...
state-o-gram --A Novel 2D Visualization for Quantum States
Fritz Schinkel·Aug 25, 2025
Quantum computing is rapidly gaining popularity, necessitating intuitive visualization tools for complex quantum states. While the Bloch Sphere effectively visualizes single-qubit states, it fundamentally lacks scalability for multi-qubit systems. Ex...
Can Classical Initialization Help Variational Quantum Circuits Escape the Barren Plateau?
Yifeng Peng, Xinyi Li, Zhemin Zhang +3 more·Aug 25, 2025
Variational quantum algorithms (VQAs) have emerged as a leading paradigm in near-term quantum computing, yet their performance can be hindered by the so-called barren plateau problem, where gradients vanish exponentially with system size or circuit d...
Vectorized Attention with Learnable Encoding for Quantum Transformer
Ziqing Guo, Ziwen Pan, Alex Khan +1 more·Aug 25, 2025
Vectorized quantum block encoding provides a way to embed classical data into Hilbert space, offering a pathway for quantum models, such as Quantum Transformers (QT), that replace classical self-attention with quantum circuit simulations to operate m...
Simulating Electron Transfer on Noisy Quantum Computers: A Scalable Approach to Open Quantum Systems
Marvin Gajewski, Alejandro D. Somoza, Gary Schmiedinghoff +3 more·Aug 25, 2025
Simulating large electronic networks with vibrational environments remains a fundamental challenge due to the long lifetimes of electronic-vibrational (vibronic) excitations on the picosecond scale. Quantum computers are a promising platform to simul...
Quantum Neural Ordinary and Partial Differential Equations
Yu Cao, Shi Jin, Nana Liu·Aug 24, 2025
We introduce a unified framework -- Quantum Neural Ordinary and Partial Differential Equations (QNODEs and QNPDEs) -- which extends the continuous-time formalism of classical neural ordinary and partial differential equations into quantum machine lea...
Fractional Angular Momenta in Electron Beams and Hydrogen-Like Atoms
Robert Ducharme, Irismar G. da Paz·Aug 24, 2025
In an earlier letter [Ducharme \textit{et al.} Phys. Rev. Lett. \textbf{126}, 134803 (2021)], a solution to the Dirac equation for a relativistic Gaussian electron beam showed that for a diverging beam the spin of each electron is the sum of fraction...
Predicting open quantum dynamics with data-informed quantum-classical dynamics
Pinchen Xie, Ke Wang, Anupam Mitra +4 more·Aug 24, 2025
We introduce a data-informed quantum-classical dynamics (DIQCD) approach for predicting the evolution of an open quantum system. The equation of motion in DIQCD is a Lindblad equation with a flexible, time-dependent Hamiltonian that can be optimized ...
Efficient Non-Adaptive Quantum Algorithms for Tolerant Junta Testing
Zongbo Bao, Yuxuan Liu, Penghui Yao +2 more·Aug 24, 2025
We consider the problem of deciding whether an $n$-qubit unitary (or $n$-bit Boolean function) is $\varepsilon_1$-close to some $k$-junta or $\varepsilon_2$-far from every $k$-junta, where $k$-junta unitaries act non-trivially on at most $k$ qubits a...
Exploring Quantum Bootstrap Sampling for AQP Error Assessment: A Pilot Study
Feng Yu, Raya Jahan·Aug 24, 2025
Error assessment for Approximate Query Processing (AQP) is a challenging problem. Bootstrap sampling can produce error assessment even when the population data distribution is unknown. However, bootstrap sampling needs to produce a large number of re...
Structured Quantum Baths with Memory: A QuTiP Framework for Spectral Diagnostics and Machine Learning Inference
Ridwan Sakidja·Aug 24, 2025
We introduce a compact simulation framework for modeling open quantum systems coupled to structured, memory-retaining baths using QuTiP. Our method models the bath as a finite set of layered qubits with adjustable connections, interpreted either as a...