Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
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...
Size-dependent critical localization
Hui-Qiang Liang, Linhu Li, Guo-Fu Xu·Sep 23, 2025
Studying critical states in quasiperiodic systems is of great importance in localization physics. Previously identified critical states share a common characteristic: they exhibit persistent critical features in the thermodynamic limit. In this Lette...
Diffusive Stochastic Master Equation (SME) with dispersive qubit/cavity coupling
Pierre Rouchon·Sep 23, 2025
A detailed analysis of the quantum diffusive Stochastic Master Equation (SME) for qubit/cavity systems with dispersive coupling is provided. This analysis incorporates classical input signals and output signals (measurement outcomes through homodyne/...
Braiding of dynamical eigenvalues of Hermitian bosonic Kitaev chains
Heming Wang, Shanhui Fan·Sep 23, 2025
In quantum mechanics, observables correspond to Hermitian operators, and the spectra are restricted to be real. However, the dynamics of the underlying fields may allow complex eigenvalues and therefore create the possibility of braiding structures. ...
Magnon-photon coupling in the YIG-based disk and ring microcavities
S. S. Demirchyan, D. M. Krichevsky, V. I. Belotelov·Sep 23, 2025
Optomagnonic dielectric resonators offer a promising platform for the bidirectional conversion of microwave and optical photons at the single quantum level. Current implementation of such a conversion lacks from low magneto-optical interaction streng...
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 ...
Quantum-memory-assisted on-demand microwave-optical transduction
Hai-Tao Tu, Kai-Yu Liao, Si-Yuan Qiu +7 more·Sep 23, 2025
Microwave-optical transducers and quantum memories are fundamental components of quantum repeaters, essential for developing a quantum internet in which solid-state quantum computers serve as nodes interconnected by optical fibers for data transmissi...
Virtual Quantum Markov Chain of four-qubit systems
Zhixing Chen, Lin Chen·Sep 23, 2025
We extend the framework of virtual quantum Markov chains (VQMCs) from tripartite systems to the four-qubit setting. Structural criteria such as the kernel-inclusion condition are analyzed, showing that they are necessary but not sufficient for the ex...
Bell state measurements in quantum optics: a review of recent progress and open challenges
Luca Bianchi, Carlo Marconi, Davide Bacco·Sep 23, 2025
Bell state measurements, which project bipartite qubit systems onto the maximally entangled Bell basis, are central to a wide range of quantum information processing tasks, including quantum teleportation, entanglement swapping, and fusion-gate quant...
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...
Barycentric decompositions for extensive monotone divergences
Erkka Haapasalo·Sep 23, 2025
We study sets of divergences or dissimilarity measures in a generalized real-algebraic setting which includes the cases of classical and quantum multivariate divergences. We show that a special subset of divergences, the so-called test spectrum, char...
Scalable bayesian shadow tomography for quantum property estimation with set transformers
Hyunho Cha, Wonjung Kim, Jungwoo Lee·Sep 23, 2025
A scalable Bayesian machine learning framework is introduced for estimating scalar properties of an unknown quantum state from measurement data, which bypasses full density matrix reconstruction. This work is the first to integrate the classical shad...
Assessing the operating characteristics of an ion-milled phonon-mediated quantum parity detector
Brandon J. Sandoval, Andrew D. Beyer, Pierre M. Echternach +4 more·Sep 23, 2025
Phonon sensitive superconducting qubits promise to provide sub-eV energy deposit thresholds, useful for future rare-event experiments looking for interactions from dark matter and neutrinos. We detail here engineering results from a Quantum Parity De...
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...
Compressed Permutation Oracles
Joseph Carolan·Sep 23, 2025
The analysis of quantum algorithms which query random, invertible permutations has been a long-standing challenge in cryptography. Many techniques which apply to random oracles fail, or are not known to generalize to this setting. As a result, founda...
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...
Exceptional-point-induced dynamic sensitivity to particle-number parity
J. Y. Liu-Sun, Z. Song·Sep 23, 2025
As an exclusive feature of a non-Hermitian system, the existence of exceptional points (EPs) depends not only on the details of the Hamiltonian but also on the particle-number filling and the particle statistics. In this paper, we study many-particle...
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...