Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,250
This Month
22
Today
0
Research Volume
13,400 papers in 12 months (-22% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Robust quantum communication through lossy microwave links
James D. Teoh, Nathanael Cottet, Patrick Winkel +3 more·Sep 23, 2025
Entanglement generation lies at the heart of many quantum networking protocols as it enables distributed and modular quantum computing. For superconducting qubits, entanglement fidelity is typically limited by photon loss in the links that connect th...
Universality in fidelity-based quantum metrology
Luis Aragón-Muñoz, Chryssomalis Chryssomalakos, Ana Gabriela Flores-Delgado +2 more·Sep 23, 2025
We consider the problem of identifying the quantum spin states that are the optimal sensors of a given transformation averaged over all possible orientations of the spin system. Our geometric approach to the problem is based on a fidelity criterion a...
Re-uploading quantum data: A universal function approximator for quantum inputs
Hyunho Cha, Daniel K. Park, Jungwoo Lee·Sep 23, 2025
Quantum data re-uploading has proved powerful for classical inputs, where repeatedly encoding features into a small circuit yields universal function approximation. Extending this idea to quantum inputs remains underexplored, as the information conta...
Mitigating Phase Correlations in Quantum Key Distribution Using Path-Selection Modulation
Amita Gnanapandithan, Li Qian, Hoi-Kwong Lo·Sep 23, 2025
Phase correlations are an under-explored vulnerability in QKD. Here, we present an experimental and simulated characterization of correlations arising from electro-optic phase encoding, over repetition rates up to the GHz level. To mitigate this vuln...
Physics-informed time series analysis with Kolmogorov-Arnold Networks under Ehrenfest constraints
Abhijit Sen, Illya V. Lukin, Kurt Jacobs +3 more·Sep 23, 2025
The prediction of quantum dynamical responses lies at the heart of modern physics. Yet, modeling these time-dependent behaviors remains a formidable challenge because quantum systems evolve in high-dimensional Hilbert spaces, often rendering traditio...
Characterizing Noise in Controlling Superconducting Qubits
Yuanzheng Paul Tan, Yung Szen Yap, Long Hoang Nguyen +5 more·Sep 23, 2025
Meaningful quantum computing is currently bottlenecked by the error rates of current generation Noisy Intermediate Scale Quantum (NISQ) devices. To improve the fidelity of the quantum logic gates, it is essential to recognize the contributions of var...
Machine learning approach to single-shot multiparameter estimation for the non-linear Schrödinger equation
Louis Rossignol, Tangui Aladjidi, Myrann Baker-Rasooli +1 more·Sep 23, 2025
The nonlinear Schrödinger equation (NLSE) is a fundamental model for wave dynamics in nonlinear media ranging from optical fibers to Bose-Einstein condensates. Accurately estimating its parameters, which are often strongly correlated, from a single m...
Extending Sample Persistence Variable Reduction for Constrained Combinatorial Optimization Problems
Shunta Ide, Shuta Kikuchi, Shu Tanaka·Sep 23, 2025
Constrained combinatorial optimization problems (CCOPs) are challenging to solve due to the exponential growth of the solution space. When tackled with Ising machines, constraints are typically enforced by the penalty function method, whose coefficie...
Approximating Quantum States with Positive Partial Transposes in Multipartite System via Linearized Proximal Alternative Direction Method of Multipliers
Jingwen Fan, Deren Han, Lin Chen·Sep 23, 2025
Numerical approximation of quantum states via convex combinations of states with positive partial transposes (bi-PPT state) in multipartite systems constitutes a fundamental challenge in quantum information science. We reformulate this problem as a l...
Shift of quantum critical point of discrete time crystal on a noisy quantum simulator
Yuta Hirasaki, Toshinari Itoko, Naoki Kanazawa +1 more·Sep 22, 2025
Recent advances in quantum technology have enabled the simulation of quantum many-body systems on real quantum devices. However, such quantum simulators are inherently subject to decoherence, and its impact on system dynamics - particularly near quan...
Transfer tensor analysis of localization in the Anderson and Aubry-André-Harper models
Michelle C. Anderson, Chern Chuang·Sep 22, 2025
We use the transfer tensor method to analyze localization and transport in simple disordered systems, specifically the Anderson and Aubry-André-Harper models. Emphasis is placed on the memory effects that emerge when ensemble-averaging over disorder,...
Observation of synchronization between two quantum van der Pol oscillators in trapped ions
Jiarui Liu, Qiming Wu, Joel E. Moore +2 more·Sep 22, 2025
Synchronization is a hallmark of collective behavior that emerges when nonlinear systems interact, spanning scales from mechanical oscillators to planetary orbits. As a universal phenomenon it underpins the study of complex systems and has far-reachi...
Scalable Steady-State Entanglement with Floquet-Engineered Stabilizer Pumping in Neutral Atom Arrays
F. Q. Guo, Shi-Lei Su, Weibin Li +1 more·Sep 22, 2025
We propose a dissipative protocol for preparing nonequilibrium steady-state entanglement in neutral atom arrays within a Floquet-Lindblad framework. Stabilizer pumping is implemented through noninstantaneous kicks, where each period consists of a sho...
Qubit Instrumentation of Entanglement
Mark Carney·Sep 22, 2025
This chapter and the experiments described within explore how `human entanglement' might be represented and even emulated by physical entanglement. To achieve this, a notion of `tonal centrality' between two musicians is captured via MIDI and passed ...
Optimal scheme for distributed quantum metrology
Zhiyao Hu, Allen Zang, Jianwei Wang +4 more·Sep 22, 2025
Optimal strategies for local quantum metrology -- including the preparation of optimal probe states, implementation of optimal control and measurement strategies, are well established. However, for distributed quantum metrology, where the goal is to ...
Uncut Gem -- An Open-Source Hackable Quantum Sensor
Mark Carney, Victoria Kumaran·Sep 22, 2025
This work presents an overview of our fully open-source, hackable quantum sensor platform based on nitrogen-vacancy (NV) center diamond magnetometry. This initiative aims to democratize access to quantum sensing by providing a comprehensive, modular,...
Chiral Color Code : Single-shot error correction for exotic topological order
Dongjin Lee, Beni Yoshida·Sep 22, 2025
We present a family of simple three-dimensional stabilizer codes, called the chiral color codes, that realize fermionic and chiral topological orders. In the qubit case, the code realizes the topological phase of a single copy of the fermionic toric ...
A sharper Magnus expansion bound woven in binary branches
Harriet Apel, Toby Cubitt, Emilio Onorati·Sep 22, 2025
The Magnus expansion provides an exponential representation of one-parameter operator families, expressed as a series expansion in its generators. This is useful for example in quantum mechanics for expressing a unitary evolution determined by a time...
Transversal STAR architecture for megaquop-scale quantum simulation with neutral atoms
Refaat Ismail, I-Chi Chen, Chen Zhao +6 more·Sep 22, 2025
Quantum computing experiments have made remarkable progress in demonstrating key components of quantum error correction, a prerequisite for scalable quantum computation. While we anticipate the arrival of early fault-tolerant quantum hardware capable...
Eigenstate Thermalization in 1+1-Dimensional SU(2) Lattice Gauge Theory Coupled with Dynamical Fermions
Diptarka Das, Lukas Ebner, Saurabh V. Kadam +3 more·Sep 22, 2025
We test the eigenstate thermalization hypothesis (ETH) in 1+1-dimensional SU(2) lattice gauge theory (LGT) with one flavor of dynamical fermions. Using the loop-string-hadron framework of the LGT with a bosonic cut-off, we exactly diagonalize the Ham...