Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Experimental Demonstration of Software-Orchestrated Quantum Network Applications over a Campus-Scale Testbed
Md. Shariful Islam, Joaquin Chung, Ely Marcus Eastman +3 more·Nov 3, 2025
To fulfill their promise, quantum networks must transform from isolated testbeds into scalable infrastructures for distributed quantum applications. In this paper, we present a prototype orchestrator for the Argonne Quantum Network (ArQNet) testbed t...
Open-Source Highly Parallel Electromagnetic Simulations for Superconducting Circuits
David Sommers, Zach Degnan, Divita Gautam +4 more·Nov 3, 2025
Electromagnetic simulations form an indispensable part of the design and optimization process for superconducting quantum devices. Although several commercial platforms exist, open-source alternatives optimized for high-performance computing remain l...
GRAPE.jl: Gradient Ascent Pulse Engineering in Julia
Michael H. Goerz, Sebastián C. Carrasco, Alastair Marshall +1 more·Nov 3, 2025
The GRAPE$.$jl package (https://github.com/JuliaQuantumControl/GRAPE.jl) implements Gradient Ascent Pulse Engineering, a widely used method of quantum optimal control. Its purpose is to find controls that steer a quantum system in a particular way. T...
Spatial Incompatibility Witnesses for Quantum Temporal Correlations
Xiangjing Liu, Harshit Verma, Yunlong Xiao +2 more·Nov 3, 2025
We introduce a witness-based framework for certifying quantum temporal correlations via the pseudo-density matrix (PDM) formalism, which is a spatiotemporal generalization of the density matrix. We define spatial incompatibility (SI) as the minimum d...
Enhanced performance of sudden-quench quantum Otto cycles via multi-parameter control
Raymon S. Watson, Karen V. Kheruntsyan·Nov 3, 2025
Advances in experimental control of interacting quantum many-body systems with multiple tunable parameters-such as ultracold atomic gases and trapped ions-are driving rapid progress in quantum thermodynamics and enabling the design of quantum thermal...
Screening in the Heitler-London Model: Revisiting the Bonding and Antibonding States of the Hydrogen Molecule
Washington P. da Silva, Daniel Vieira, Jonas Maziero +1 more·Nov 3, 2025
The present manuscript revisits one of the earliest approaches to treating molecular systems within the Schrödinger formalism of quantum mechanics: the Heitler-London (HL) model. Originally proposed in 1927 and based on a linear combination of atomic...
Multistate iterative qubit coupled cluster (MS-iQCC): a quantum-inspired, state-averaged approach to ground- and excited-state energies
Robert A. Lang, Shashank G. Mehendale, Ilya G. Ryabinkin +1 more·Nov 3, 2025
We introduce the multistate iterative qubit coupled cluster (MS-iQCC) method, a quantum-inspired algorithm that runs efficiently on classical hardware and is designed to predict both ground and excited electronic states of molecules. Accurate excited...
Investigation of Performance and Scalability of a Quantum-Inspired Evolutionary Optimizer (QIEO) on NVIDIA GPU
Aman Mittal, Kasturi Srikanth, F. Bosco +2 more·Nov 3, 2025
Quantum-inspired evolutionary optimization leverages quantum computing principles like superposition, interference, and probabilistic representation to enhance classical evolutionary algorithms with improved exploration and exploitation capabilities....
Characterizing QUBO Reformulations of the Max-k-Cut Problem for Quantum Computing
Adrian Harkness, Hamidreza Validi, Ramin Fakhimi +3 more·Nov 2, 2025
Quantum computing offers significant potential for solving NP-hard combinatorial (optimization) problems that are beyond the reach of classical computers. One way to tap into this potential is by reformulating combinatorial problems as a quadratic un...
Attosecond quantum optical interferometry
Javier Rivera-Dean, Lidija Petrovic, Maciej Lewenstein +1 more·Nov 2, 2025
In this work, we explore the scheme of attosecond quantum interferometry (AQI), the quantum optical version of classical attosecond interferometry, which allows to measure quantum optical properties on the attosecond time-scale. We develop how the sc...
Robust Quantum State Generation in Symmetric Spin Networks
Andre Luiz P. de Lima, Luke S. Baker, Anatoly Zlotnik +3 more·Nov 2, 2025
In this work, we consider a parameterized Ising model with long-range symmetric pairwise interactions on a network of spin $\frac{1}{2}$ particles. The system is designed with symmetric dynamics, allowing for the reduction of the state space to a sub...
In situ calibration of unitary operations during quantum error correction
Jonathan Kunjummen, Jacob M. Taylor·Nov 2, 2025
Quantum error correction uses the measurement of syndromes and classical decoding algorithms to estimate the location and type of errors while protecting the encoded quantum bits. Here we consider how prior information and Bayesian updates can play a...
Quantum Network Tomography for General Topology with SPAM Errors
Xuchuang Wang, Matheus Guedes De Andrade, Guus Avis +3 more·Nov 2, 2025
The goal of quantum network tomography (QNT) is the characterization of internal quantum channels in a quantum network from external peripheral operations. Prior research has primarily focused on star networks featuring bit-flip and depolarizing chan...
ECCentric: An Empirical Analysis of Quantum Error Correction Codes
Aleksandra Świerkowska, Jannik Pflieger, Emmanouil Giortamis +1 more·Nov 2, 2025
Quantum error correction (QEC) is essential for building scalable quantum computers, but a lack of systematic, end-to-end evaluation methods makes it difficult to assess how different QEC codes perform under realistic conditions. The vast diversity o...
Pseudo quantum advantages in perceptron storage capacity
Fabio Benatti, Masoud Gharahi, Giovanni Gramegna +2 more·Nov 2, 2025
We investigate a generalized quantum perceptron architecture characterized by an oscillating activation function with a tunable frequency ranging from zero to infinity. Employing analytical techniques from statistical mechanics, we derive the optimal...
Enhancing Kerr-Cat Qubit Coherence with Controlled Dissipation
Francesco Adinolfi, Daniel Z. Haxell, Alessandro Bruno +4 more·Nov 2, 2025
Quantum computing crucially relies on maintaining quantum coherence for the duration of a calculation. Bosonic quantum error correction protects this coherence by encoding qubits into superpositions of noise-resilient oscillator states. In the case o...
The electron double-slit experiment from an ISP perspective
David LeBlond·Nov 2, 2025
This paper presents a pedagogical model, and accompanying R code, of the electron double-slit experiment using the perspective of indivisible stochastic processes. The approach offers an alternative lens on quantum probability and coherence phenomena...
The adiabatic theorem for non-Hermitian quantum systems with real eigenvalues and the complex geometric phase
Minyi Huang, Ray-Kuang Lee·Nov 2, 2025
The adiabatic theorem is one of the most interesting and significant theorems in quantum mechanics. However, the adiabatic theorem can fail for general non-Hermitian quantum systems. In this paper, by utilizing the complex geometric phase, the functi...
Exploring the limit of the Lattice-Bisognano-Wichmann form describing the Entanglement Hamiltonian: A quantum Monte Carlo study
Siyi Yang, Yi-Ming Ding, Zheng Yan·Nov 2, 2025
As a powerful theoretical construct, the entanglement Hamiltonian (EH) encapsulates the essential entanglement properties of a quantum many-body system. From the EH, one can extract a variety of entanglement quantities, such as entanglement entropies...
EPR Revisited: Context-Indexed Elements of Reality and Operational Completeness
Mikołaj Sienicki, Krzysztof Sienicki·Nov 2, 2025
We reframe the EPR argument through an operational lens, replacing the notion of fixed "elements of reality" with context-indexed conditional states - what's often referred to as a measurement assemblage. This move deliberately sidesteps the assumpti...