Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Making the Virtual Real: Measurement-Powered Tunneling Engines
Rafael Sánchez, Alok Nath Singh, Andrew N. Jordan +1 more·Oct 25, 2025
Quantum tunneling allows electrons to be transferred between two regions separated by an energetically forbidden barrier. Performing a position measurement that finds a particle in the barrier forces the tunneling electrons to transition from having ...
A simple electromagnetic model of the electron
Carlos A. M. dos Santos, Marc J. J. Fleury·Oct 25, 2025
We present a toroidal electromagnetic ansatz that provides a realistic microscopic model of the QED electron. The proposed toroidal electromagnetic wave satisfies Maxwell's equations and reproduces fundamental properties of the electron as described ...
Coherent Perfect Absorption: Zero Reflection Without Linewidth Suppression
M. Ebrahimi, Y. Huang, A. Rashedi +1 more·Oct 25, 2025
Motivated by recent claims, we revisit how coherent perfect absorption (CPA) influences cavity and polaritonic linewidths. Using standard input output theory and measurements on single port bare microwave cavities and cavity magnon hybrids, we find t...
Tensor gravity gradiometry with a single-axis atom gradiometer
Ryan J. Thomas, Samuel Legge, John D. Close·Oct 25, 2025
We propose a method for using a single-axis atom interferometric gravity gradiometer to measure off-diagonal elements of the gravity gradient tensor. By tilting the gradiometer, the measured gradient becomes a linear combination of different componen...
Nonlinear optical behavior of confined electrons under torsion and magnetic fields
Carlos Magno O. Pereira, Edilberto O. Silva·Oct 25, 2025
In this work, we investigate the influence of torsion, Aharonov-Bohm flux, and external magnetic fields on the linear and nonlinear optical properties of a confined quantum system. The confinement potential is not assumed a priori, but emerges as a r...
Characterizing Pauli Propagation via Operator Complexity in Quantum Spin Systems
Yuguo Shao, Song Cheng, Zhengwei Liu·Oct 25, 2025
Simulating real-time quantum dynamics in interacting spin systems is a fundamental challenge, where exact diagonalization suffers from exponential Hilbert-space growth and tensor-network methods face entanglement barriers. Recently, Pauli-propagation...
Van Hove singularities in stabilizer entropy densities
Daniele Iannotti, Lorenzo Campos Venuti, Alioscia Hamma·Oct 25, 2025
The probability distribution of a measure of non-stabilizerness, also known as magic, is investigated for Haar-random pure quantum states. Focusing on the stabilizer Rényi entropies, the associated probability density functions (PDFs) are found to di...
Rigorous test of the Raleigh-Ritz method for Mexican hat type potentials
A. M. Rodriguez Zarate, T. Thiemann·Oct 25, 2025
Interesting quantum integrable models are rare and one often has to resort to approximation methods. One of these is the Raleigh Ritz method which under certain circumstances allows to approximately compute the lowest energy eigenstate (or ground sta...
Autonomous Floquet Engineering of Bosonic Codes via Reinforcement Learning
Zheping Wu, Lingzhen Guo, Haobin Shi +1 more·Oct 25, 2025
Bosonic codes represent a promising route toward quantum error correction in continuous-variable systems, with direct relevance to experimental platforms such as circuit QED and optomechanics. However, their preparation and stabilization remain highl...
HPC-Driven Modeling with ML-Based Surrogates for Magnon-Photon Dynamics in Hybrid Quantum Systems
Jialin Song, Yingheng Tang, Pu Ren +8 more·Oct 25, 2025
Simulating hybrid magnonic quantum systems remains a challenge due to the large disparity between the timescales of the two systems. We present a massively parallel GPU-based simulation framework that enables fully coupled, large-scale modeling of on...
Exact time-evolving resonant states for open double quantum-dot systems with spin degrees of freedom
Akinori Nishino, Naomichi Hatano·Oct 25, 2025
We study time-evolving resonant states in an open double quantum-dot system, taking into account spin degrees of freedom as well as both on-dot and interdot Coulomb interactions. We exactly derived a non-Hermite effective Hamiltonian acting on the su...
Effect of Stochastic Charge Noise in Si/SiGe Quantum-Dot Spin Qubits
Wei-en Chiu, Chia-Hsien Huang, Yi-Hsien Wu +1 more·Oct 25, 2025
In Si/SiGe quantum dots, the decoherence behavior of spin qubits usually comes from the non-Markovian effect of the charge noise. To improve the performance of using the coherent noise models in the decoherence simulation and tomography analysis, her...
Machine Learning Enables Optimization of Diamond for Quantum Applications
Dane W. deQuilettes, Eden Price, Linh M. Pham +11 more·Oct 25, 2025
Spins in solid-state materials, molecules, and other chemical systems have the potential to impact the fields of quantum sensing, communication, simulation, and computing. In particular, color centers in diamond, such as negatively charged nitrogen v...
An Algebraic-Recursive Approach to Generate Higher-Order Symmetry Operators for Schrödinger and Klein-Gordon equations
Enrique Casanova, Melvin Arias·Oct 25, 2025
This article explores an algebraic-recursive approach to construct differential operators that commute with a central operator $\hat{H}$ in quantum mechanics. Starting from the Schrödinger equation for a free particle, the work derives first-order sy...
Boundaries of Acceptable Defectiveness: Redefining Surface Code Robustness under Heterogeneous Noise
Jacob S. Palmer, Kaitlin N. Smith·Oct 24, 2025
A variety of past research on superconducting qubits shows that these devices exhibit considerable variation and thus cannot be accurately depicted by a uniform noise model. To combat this often unrealistic picture of homogeneous noise in quantum pro...
Emergent spatiotemporal order and nonreciprocity in driven-dissipative nonlinear magnetic systems
Vincent Flynn, Benedetta Flebus·Oct 24, 2025
The identification of platforms with independently tunable nonlinearity and non-Hermiticity promises a quantitative route to far-from-equilibrium universality across many-body systems. Here we show that a conventional ferromagnetic multilayer realize...
Form-preserving transformations of wave and Wigner functions
Mustafa Amin, Mason Daub, Mark A. Walton·Oct 24, 2025
Solutions of the time-dependent Schrödinger equation are mapped to other solutions for a (possibly) different potential by so-called form-preserving transformations. These time-dependent transformations of the space and time coordinates can produce r...
The evolution of Liouville von Neumann master equations in the Pechukas-Yukawa framework
Mumnuna Aziz Qureshi·Oct 24, 2025
This paper presents a novel formalism for the out of equilibrium dynamics of the density matrix, capable of describing highly entangled many-body interactions. The evolution of quantum states is evaluated via eigenvalue dynamics of a general Hamilton...
Impurity-induced topological decomposition
Tianxing Shi, Chuhang Zhang, Liang Jin +1 more·Oct 24, 2025
Controlling topological phases is a central goal in quantum materials and related fields, enabling applications such as robust transport and programmable edge states. Here we uncover a mechanism in which local on-site impurities act as knobs to decom...
Temporal Complexity Hierarchies in Solvable Quantum Many-Body Dynamics
He-Ran Wang, Ilya Vilkoviskiy, Dmitry A. Abanin·Oct 24, 2025
The influence matrix (IM) provides a powerful framework for characterizing nonequilibrium quantum many-body dynamics by encoding multitime correlations into tensor-network states. Understanding how its computational complexity relates to underlying d...