Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Zeeman-like coupling to valley degree of freedom in Si-based spin qubits
S Akbar Jafari, Hendrik J Bluhm, David P Divincenzo·Dec 26, 2025
Increasing the valley splitting in Si-based heterostructures is critical for improving the performance of semiconductor qubits. This paper demonstrates that the two low-energy conduction band valleys are not independent parabolic bands. Instead, they...
Properties of a Three-Level $Λ$-Type Atom Driven by Coherent and Stochastic Fields
Sajad Ahmadi, Mohsen Akbari, Shahpoor Saeidian +1 more·Dec 25, 2025
We present a theoretical investigation of a three-level $Λ$-type atom driven by a strong coherent laser and a weak stochastic field exhibiting amplitude and phase fluctuations. The stochastic field is modeled as a complex Gaussian-Markovian random pr...
GaDE -- GPU-acceleration of time-dependent Dirac Equation for exascale
Johanne Elise Vembe, Marcin Krotkiewski, Magnar Bjørgve +2 more·Dec 25, 2025
Modern heterogeneous high-performance computing (HPC) systems powered by advanced graphics processing unit (GPU) architectures enable accelerating computing with unprecedented performance and scalability. Here, we present a GPU-accelerated solver for...
Observation of disorder-induced superfluidity
Nicole Ticea, Elias Portoles, Eliott Rosenberg +299 more·Dec 24, 2025
The emergence of states with long-range correlations in a disordered landscape is rare, as disorder typically suppresses the particle mobility required for long-range coherence. But when more than two energy levels are available per site, disorder ca...
Observation of the Aharonov-Bohm Effect in Pilot-Wave Hydrodynamics
Georgi Gary Rozenman, Kyle I. McKee, Arnaud Lazarus +2 more·Dec 24, 2025
We report the results of an experimental study of an analog of the Aharonov-Bohm (AB) effect achieved with the hydrodynamic pilot-wave system. A walking droplet is confined to an annular cavity that encircles a shielded vortex, but lies outside its r...
Controlling photothermal forces and backaction in nano-optomechanical resonators through strain engineering
Menno H. Jansen, Cauê M. Kersul, Ewold Verhagen·Dec 24, 2025
In micro- and nanoscale optomechanical systems, radiation pressure interactions are often complemented or impeded by photothermal forces arising from thermal strain induced by optical heating. We show that the sign and magnitude of the photothermal f...
Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
Yao Lu, Tianpu Zhao, André Vallières +13 more·Dec 23, 2025
Time-dependent electromagnetic drives are fundamental for controlling complex quantum systems, including superconducting Josephson circuits. In these devices, accurate time-dependent Hamiltonian models are imperative for predicting their dynamics and...
Run-and-Tumble Dynamics and Zeno--Anti-Zeno Transition in Biased Quantum Trajectories
Aritra Kundu·Dec 23, 2025
We identify the transition from the oscillatory Rabi regime to the localized Zeno/Anti-Zeno regime in continuous measurement and feedback of a qubit as a quantum analogue of Motility-Induced Phase Separation (MIPS). A mapping between a biased monitor...
Exploring the nature of gravity with quantum information methods
Bruna Sahdo, Natália Salomé Móller·Dec 23, 2025
The aim of this article is to provide an introduction to the use of quantum information methods for investigating the interface between quantum theory and gravity. To this end, we discuss the basic principles of two current research streams that use ...
Storage and retrieval of optical skyrmions with topological characteristics
Jinwen Wang, Xin Yang, Yun Chen +10 more·Dec 23, 2025
Optical skyrmions are topological structures of light whose defining property, the skyrmion number, is robust against perturbations. This makes them attractive for applications in quantum information storage, where resilience to decoherence is paramo...
Macroscopic quantum states, quantum phase transition for $N$ three-level atoms in an optical cavity -- Gauge principle and non-Hermitian Hamiltonian
Ni Liu, Xinyu Jia, J. -Q. Liang·Dec 23, 2025
We study in this paper the quantum phase transition (QPT) from normal phase (NP) to superradiant phase (SP) for $N$ three-level atoms in a single-mode optical cavity for both Hermitian and non Hermitian Hamiltonians, where the $Ξ$-type three-level at...
Disorder-induced broadening of quantum momentum distribution
Vili Heinonen, Jani Lukkarinen·Dec 23, 2025
We study the long-time behavior of a non-interacting two-dimensional quantum gas in a weak random potential with long-range correlations. Any peaked initial momentum distribution will eventually become isotropic and broaden due to scattering events w...
Partial Collapse and Ensemble Invariance under Continuous Quantum Measurement
Shalender Singh, Santosh Kumar·Dec 23, 2025
Wavefunction collapse is commonly associated with unavoidable physical disturbance of the measured system. Here we show that in driven-dissipative quantum systems, continuous measurement can induce strong trajectory-level collapse while leaving the e...
Force Sensing Beyond the Standard Quantum Limit in a Hybrid Optomechanical Platform
Alolika Roy, Amarendra K. Sarma·Dec 23, 2025
We theoretically investigate quantum measurement noise in a hybrid optomechanical system, focusing on radiation pressure back action and its impact on force sensing. The setup consists of an optomechanical cavity with a movable mirror, a fixed semi t...
An introduction to monitored quantum systems and quantum trajectories: spectrum, typicality, and phases
Ryusuke Hamazaki, Ken Mochizuki, Hisanori Oshima +1 more·Dec 22, 2025
Thanks to recent experimental advances in simulating and detecting quantum dynamics with high precision and controllability, our understanding of the physics of monitored quantum systems has considerably deepened over the past decades. In this articl...
Quantum Imaging of Birefringent Samples using Hong-Ou-Mandel Interference
Carolina Gonçalves, Tiago D. Ferreira, Catarina S. Monteiro +1 more·Dec 22, 2025
Two-photon interference in a Hong-Ou-Mandel (HOM) interferometer can be used as a quantum sensing mechanism due to the sensitivity of the interference dip to perturbations of the photon indistinguishability. In particular, recent works have generaliz...
Asymmetric and chiral dynamics of two-component anyons with synthetic gauge flux
Rui-Jie Chen, Ying-Xin Huang, Guo-Qing Zhang +1 more·Dec 22, 2025
In this work, we investigate the non-equilibrium dynamics in a one-dimensional two-component anyon-Hubbard model, which can be mapped to an extended Bose-Hubbard ladder with density-dependent hopping phase and synthetic gauge flux. Through numerical ...
Reactive near-field subwavelength microwave imaging with a non-invasive Rydberg probe
Chaoyang Hu, Mingyong Jing, Zongkai Liu +10 more·Dec 22, 2025
Non-invasive microwave field imaging--accurately mapping field distributions without perturbing them--is essential in areas such as aerospace engineering, biomedical imaging and integrated-circuit diagnostics. Conventional metal probes, however, inev...
Noisy Monitored Quantum Circuits
Shuo Liu, Shao-Kai Jian, Shi-Xin Zhang·Dec 21, 2025
Noisy monitored quantum circuits have emerged as a versatile and unifying framework connecting quantum many-body physics, quantum information, and quantum computation. In this review, we provide a comprehensive overview of recent advances in understa...
Entanglement Dynamics by (Non-)Unitary Local Operator Quenches in a 2D Holographic CFT
Weibo Mao, Akihiro Miyata, Masahiro Nozaki +1 more·Dec 21, 2025
In this paper, we investigate the time evolution of entanglement entropy and mutual information for the spatially-infinite systems where we act with a primary operator on the vacuum state and then time-evolve it with the sequence of the Euclidean and...