Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
The resource theory of interactive quantum instruments
Chung-Yun Hsieh, Armin Tavakoli, Huan-Yu Ku +1 more·Mar 29, 2026
Quantum instruments describe both the classical output and the updated quantum state in a measurement process. To do this in a non-trivial way, instruments must have the capability to interact coherently with the state that they measure. Here, we dev...
Benchmarking Encoding Families in Quantum Neural Networks Under Fixed Circuit Area for Frequency Spectrum and Trainability
Martyna Czuba, Patrick Holzer, Hein Zay Yar Oo·Mar 29, 2026
Quantum Neural Networks (QNNs) offer a promising framework for integrating quantum computing principles into machine learning, yet their practical capabilities and limitations remain insufficiently studied. In this work, we systematically investigate...
Quantum simulation of thermalization dynamics of a nonuniform Dicke model
S. -A. Guo, J. Ye, J. -Y. Tan +11 more·Mar 29, 2026
Previous experimental realizations of Dicke model in atomic or ionic systems are based on global observables assuming uniform spin-boson coupling, while inevitable experimental nonuniformity on the one hand requires site-resolved measurement of spin ...
$q$-Deformed Quantum Mechanics and the Thermodynamics of Black Hole/White Hole Spectral pair
S. Jalalzadeh, R. Jalalzadeh, H. Moradpour·Mar 29, 2026
In this work, we investigate the thermodynamics of Schwarzschild black and white holes within a $q$-deformed Wheeler--DeWitt framework. By introducing a $q$-deformed Heisenberg--Weyl algebra at a root of unity, we derive a finite-dimensional Hilbert ...
Coherence-Controlled Quantum Zeno Dynamics from Exact Reset Maps
Jishad Kumar, Achilleas Lazarides, Tapio Ala-Nissila·Mar 29, 2026
We develop an exact framework for quantum Zeno and anti-Zeno dynamics in a broad class of open systems, whose microscopic Hamiltonians are quadratic in bosonic or fermionic operators. We treat the environment through an exact stroboscopic resetting s...
Resonant excitation of single and coupled qubits for coherent quantum control and microwave detection
O. A. Ilinskaya, S. N. Shevchenko·Mar 29, 2026
Resonant driving enables coherent control of quantum systems, including single and coupled qubits. From a complementary perspective, transitions of a quantum system can be exploited for the detection of microwave photons. In this work, we theoretical...
Quantum control and signal enhancement exploiting the Stokes-anti-Stokes coherence
Wen-Zhao Zhang, Keye Zhang, Jie Li·Mar 29, 2026
We present a theoretical framework for the coherent coupling between Stokes and anti-Stokes scattering processes, revealing interference phenomena inaccessible to either process alone. Within a dispersive-interaction model beyond the resolved-sideban...
RADAR-Q: Resource-Aware Distributed Asynchronous Routing for Entanglement Distribution in Multi-Tenant Quantum Networks
Chenliang Tian, Zebo Yang, Raj Jain +6 more·Mar 29, 2026
Scalable quantum networks must support concurrent entanglement requests, yet existing routing protocols fail when users compete for shared repeater resources, wasting fragile quantum states. This paper presents RADAR-Q, a resource-aware decentralized...
Asynchronous Routing for Multipartite Entanglement in Quantum Networks
Chenliang Tian, Zebo Yang, Raj Jain +6 more·Mar 29, 2026
In quantum networks, one way to communicate is to distribute entanglements through swapping at intermediate nodes. Most existing work primarily aims to create efficient two-party end-to-end entanglement over long distances. However, some scenarios al...
Phase transitions in parametrized quantum circuits
Xiaoyang Wang, Han Xu, Lukas Broers +2 more·Mar 29, 2026
Phase transitions are among the most intriguing phenomena in physical systems, yet their behavior near criticality remain challenging to study using classical algorithms. Parameterized quantum circuits (PQCs) offer a promising approach to investigati...
Entanglement Transfer Dynamics in a Two-Leg Spin Ladder Under a Selective Magnetic Field
Soghra Ghanavat, Abbas Sabour, Somayeh Mehrabankar·Mar 29, 2026
We investigate the dynamical transfer of bipartite entanglement through a two-leg spin-1/2 ladder governed by the anisotropic Heisenberg (XXZ-type) model with a selective magnetic field applied exclusively to the mediating rungs. Starting from a maxi...
Correlation Functions and Photon-Photon Interactions Controlled by a Giant Atom
Yanjin Yue, Rui-Yang Gong, Shengyong Li +1 more·Mar 29, 2026
Waveguide quantum electrodynamics (WQED) provides a powerful platform for exploring quantum optical phenomena by enhancing atom-photon interactions through photon confinement in a waveguide. Here we investigate the photon-scattering dynamics of a wea...
High performance imaging of $^{171}$Yb atom in shallow clock-magic tweezer by alternating dual-tone narrowline cooling
Yunheung Song, Kangheun Kim, Jeong Ho Han +2 more·Mar 29, 2026
We demonstrate imaging $^{171}$Yb single atoms in clock-magic tweezers of 759.4 nm wavelength, with above 99.9% fidelity and survival. We use alternating dual-tone narrowline imaging for more efficient three-dimensional cooling in tweezers, allowing ...
HAMMR-L: Noise Reduction in Quantum Outcomes Using a Richardson-Lucy Deconvolution Algorithm for Quantum State Graphs
Jake Scally, Austin Myers, Ryan Carmichael +2 more·Mar 29, 2026
Current quantum computers present significant noise, especially as circuit depth and qubit count increase. Prior work has demonstrated that erroneous outcomes exhibit some behavior in Hamming space, enabling improvements in the output distributions o...
Exact diagonalization of a non-quadratic bosonic Liouvillian with two-body loss
Masaaki Tokieda·Mar 29, 2026
We present the full diagonalization of a non-quadratic bosonic Liouvillian with a two-body loss term. The Liouvillian is shown to be exactly diagonalizable in terms of left and right confluent hypergeometric functions, whose distinction arises from t...
First order Maxwell operator formalism for macroscopic quantum electrodynamics
Ishita Agarwal, Ankit Kundu, Christian M. Lange +1 more·Mar 29, 2026
Standard macroscopic QED is built on the second-order Green's function for the electric field and discards open-system boundary terms. Here we develop a first-order electromagnetic operator approach that retains both $\mathbf{E}$ and $\mathbf{H}$ and...
Time-energy uncertainty relation from subcycle mode vacuum fluctuations of a quantum field
Achintya Sajeendran, Timothy C. Ralph·Mar 29, 2026
The time-energy uncertainty relation is often invoked as a heuristic explanation for virtual particles in interacting quantum field theories. However, this interpretation breaks down upon closer scrutiny for several reasons. Although concrete derivat...
A Schrödinger-like equation for the Thermodynamics of a particle in a box
Adrian Faigon·Mar 29, 2026
The particle in an expanding/contracting 1-dimension box is revisited in action-angle like variables with direct thermodynamic interpretation. An angle dependent potential is proposed accurately describing the mechanical behavior while also capturing...
LP-Based Algorithms for Scheduling in a Quantum Switch
R. Srikant·Mar 29, 2026
We consider scheduling in a quantum switch with stochastic entanglement generation, finite quantum memories, and decoherence. The objective is to design a scheduling algorithm with polynomial-time computational complexity that stabilizes a nontrivial...
Decoherence-Free Qubit and Chiral Emission from a Giant Molecule in Waveguide QED
Yang Wang, Juan José García-Ripoll, Alan C. Santos·Mar 28, 2026
Combining decoherence protection with directional photon emission in a single waveguide quantum electrodynamics (QED) device remains an open challenge. Here we show that an artificial giant molecule -- strongly interacting artificial atoms coupled to...