Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Constrained Higher-Order Binary Optimization for Wireless Communications Systems Using Ising Machines
Gan Zheng, Ioannis Krikidis·Sep 24, 2025
This paper develops an algorithmic solution using Ising machines to solve large-scale higher-order binary optimization (HOBO) problems with inequality constraints for resource optimization in wireless communications systems. Quadratic unconstrained b...
Exploiting Non-Markovian Memory Effects for Robust Quantum Teleportation
Safae Gaidi, Nour-Eddine Abouelkhir, Abdallah Slaoui +2 more·Sep 23, 2025
The reliable transmission of quantum information remains a central challenge in the presence of environmental noise. In particular, maintaining high teleportation fidelity in open quantum systems is hindered by decoherence, which disrupts quantum coh...
Observables in Motion: A guide to simulating classical and quantum dynamics
Denys I. Bondar, Gerard McCaul, Andrii Sotnikov·Sep 23, 2025
We present a pedagogical work-in-progress. This textbook aims to introduce Hilbert space representations for quantum and classical dynamics, outlining the mathematical foundations, practical guidance, and Python implementation of dynamical simulation...
Separate and efficient characterization of state-preparation and measurement errors using single-qubit operations
Muhammad Qasim Khan, Leigh M. Norris, Lorenza Viola·Sep 23, 2025
In many platforms, errors from state-preparation and measurement (SPAM) dominate single-qubit gate errors. To inform further hardware improvements and the development of more effective SPAM mitigation strategies, it is necessary to separately charact...
Evidence of magnetospheric vacuum birefringence in the polarized X-rays of a radio magnetar
Rachael E. Stewart, Hoa Dinh Thi, George Younes +13 more·Sep 23, 2025
The quantum electrodynamics (QED) theory predicts that the quantum vacuum becomes birefringent in the presence of ultra-strong magnetic fields -- a fundamental effect yet to be directly observed. Magnetars, isolated neutron stars with surface fields ...
Survival Probability in Quantum Conveyance: Effects of Adiabatic Tunneling and Acceleration Discontinuity
Yoshiaki Teranishi, Satoshi Morita, Seiji Miyashita·Sep 23, 2025
In the real-time manipulation of quantum states, it is necessary to dynamically control the parameters of the system's Hamiltonian. We have studied the survival probability during the conveyance of a particle by a trapping potential, where the partic...
Impact of Static Disorder and Dephasing on Quantum Transport in LH1-RC Models
Stephon Alexander, Roger Andrews, Oliver Fox +1 more·Sep 23, 2025
We numerically study excitation transfer in an artificial LH1-RC complex -- an $N$-site donor ring coupled to a central acceptor -- driven by a narrowband optical mode and evolved under a Lindblad master equation with loss and dephasing. In the absen...
Quantum Random Synthetic Skyrmion Texture Generation, a Qiskit Simulation
Hillol Biswas·Sep 23, 2025
An integer winding, i.e., topological charge, is a characteristic of skyrmions, which are topologically nontrivial spin patterns in magnets. They emerge when smooth two-dimensional spin configurations are stabilized by conflicting interactions such a...
Trading modes against energy
Lukas Brenner, Beatriz Dias, Robert Koenig·Sep 23, 2025
We ask how much energy is required to weakly simulate an $n$-qubit quantum circuit (i.e., produce samples from its output distribution) by a unitary circuit in a hybrid qubit-oscillator model. The latter consists of a certain number of bosonic modes ...
Overcoming limitations on gate fidelity in noisy static exchange-coupled surface qubits
Hoang-Anh Le, Saba Taherpour, Denis Janković +1 more·Sep 23, 2025
Recent experiments demonstrated that the spin state of individual atoms on surfaces can be quantum-coherently controlled through all-electric electron spin resonance. By constructing interacting arrays of atoms this results in an atomic-scale qubit p...
Cusp solitons mediated by a topological nonlinearity
Harvey Cao, Daniel Leykam·Sep 23, 2025
Nonlinearity in the Schrödinger equation gives rise to rich phenomena such as soliton formation, modulational instability, and self-organization in diverse physical systems. Motivated by recent advances in engineering nonlinear gauge fields in Bose-E...
Octahedral dynamics and local symmetry in hybrid perovskite FAPbI3 under thermal excitation
H. Joshi, K. C. Bhamu, A. Shankar +2 more·Sep 23, 2025
Density Functional Theory (DFT) and ab initio molecular dynamics (AIMD) simulations have been employed to investigate the evolution of local motifs within the tetragonal phase of FAPbI3 under thermal excitation. Our results reveal a distinct broadeni...
Connecting Quantum Computing with Classical Stochastic Simulation
Jose Blanchet, Mark S. Squillante, Mario Szegedy +1 more·Sep 23, 2025
This tutorial paper introduces quantum approaches to Monte Carlo computation with applications in computational finance. We outline the basics of quantum computing using Grover's algorithm for unstructured search to build intuition. We then move slow...
A Verified Compiler for Quantum Simulation
Liyi Li, Fenfen An, Federico Zahariev +3 more·Sep 23, 2025
Hamiltonian simulation is a central application of quantum computing, with significant potential in modeling physical systems and solving complex optimization problems. Existing compilers for such simulations typically focus on low-level representati...
HARLI CQUINN: Higher Adjusted Randomness with Linear In Complexity QUantum INspired Networks for K-Means
Jiten Oswal, Saumya Biswas·Sep 23, 2025
We contrast a minimalistic implementation of quantum k-means algorithm to classical k-means algorithm. With classical simulation results, we demonstrate a quantum performance, on and above par, with the classical k-means algorithm. We present benchma...
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...
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 ...
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...
Order from chaos with adaptive circuits on quantum hardware
Bibek Pokharel, Haining Pan, Kemal Aziz +8 more·Sep 22, 2025
Programmable quantum devices provide a platform to control the coherent dynamics of quantum wavefunctions. Here we experimentally realize adaptive monitored quantum circuits, which incorporate conditional feedback into non-unitary evolution, to contr...
Localization and topological signatures under periodic twisting
James Walkling, Antonio Štrkalj, F. Nur Ünal·Sep 22, 2025
We theoretically explore a dynamical generalization of the Aubry-André model in two dimensions formed by superimposing two square-lattice potentials. Motivated by the rich physics emerging at different twist angles between the two lattices at equilib...