Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Toward scalable quantum computations of atomic nuclei
Chenyi Gu, Matthias Heinz, Oriel Kiss +1 more·Jul 19, 2025
We solve the nuclear two-body and three-body bound states via quantum simulations of pionless effective field theory on a lattice in position space. While the employed lattice remains small, the usage of local Hamiltonians including two- and three-bo...
The Proportional Fair Scheduler in Wavelength-Multiplexed Quantum Networks
Sanidhay Bhambay, S. Joshi, Thirupathaiah Vasantam +1 more·Jul 18, 2025
We address the problem of optimal pumping strategies in quantum networks. These networks enable secure communication by distributing entangled photon pairs to user (or node) pairs. Quantum Key Distribution (QKD) protocols, like BBM92, generate secret...
Quantum Internet in a Nutshell -- Advancing Quantum Communication with Ion Traps
J. Hilder, Sascha Heußen, A. Ginter +4 more·Jul 18, 2025
Quantum Internet in a Nutshell (QI-Nutshell) connects the fields of quantum communication and quantum computing by emulating quantum communication protocols on currently available ion-trap quantum computers. We demonstrate emulations of QKD protocols...
Quantum Kramers-Henneberger Transformation
Javier Argüello-Luengo, Javier Rivera-Dean, Philipp Stammer +2 more·Jul 17, 2025
The classical Kramers-Henneberger transformation connects, via a series of unitary transformations, the dynamics of a quantum particle of mass $m$ located in a trap at position $α(t)$, with the dynamics of a charge $e$ moving in an electric field $e{...
Circular-beam approximation for quantum channels in a turbulent atmosphere
I. Pechonkin, M. Klen, A. A. Semenov·Jul 17, 2025
The evolution of quantum states of light in free-space channels is strongly influenced by atmospheric turbulence, posing a significant challenge for quantum communication. The transmittance in such channels randomly fluctuates. This effect is commonl...
Cryogenic performance evaluation of commercial SP4T microelectromechanical switch for quantum computing applications
Yong-bok Lee, Connor Devitt, Xu Zhu +3 more·Jul 17, 2025
Superconducting quantum computers have emerged as a leading platform for next-generation computing, offering exceptional scalability and unprecedented computational speeds. However, scaling these systems to millions of qubits for practical applicatio...
A Quantum Approach for Optimal Transient Control in Network-Based Epidemic Models
D. Volpe, Giacomo Orlandi, Mattia Boggio +3 more·Jul 17, 2025
Effective epidemic control is crucial for mitigating the spread of infectious diseases, particularly when pharmaceutical interventions such as vaccines or treatments are limited. Nonpharmaceutical strategies, including mobility restrictions, are key ...
Scalable suppression of heating errors in large trapped-ion quantum processors
Zixuan Huo, Yangchao Shen, Xiao Yuan +1 more·Jul 17, 2025
Trapped-ion processors are leading candidates for scalable quantum computation. However, motional heating remains a key obstacle to fault-tolerant operation, especially when system size increases. Heating error is particularly challenging to suppress...
Exponential speed-up in VQE molecular energy ranking with Sridhara-compressed Hamiltonians
Dennis Lima, Saif Al-Kuwari·Jul 16, 2025
Polycyclic aromatic hydrocarbons (PAHs) are residual and intermediary molecules in the Chemical Vapor Deposition (CVD) to produce graphene from methane. Ranking a combinatorial space of variants of PAHs by energy allows the CVD to be optimized, while...
Comment on "Properties and dynamics of generalized squeezed states"
Rubén Gordillo-Hachuel, Ricardo Puebla·Jul 16, 2025
A recent article [S. Ashhab and M. Ayyash, New J. Phys. 27, 054104 (2025)] has reported unexpected oscillatory dynamics in generalized squeezed states of order higher than two as their squeezing parameter increases. This behaviour, observed through n...
An Adversarial Quantum Key Distribution Project
Brian R. La Cour, Noah A. Davis·Jul 16, 2025
Quantum key distribution (QKD) is a popular introduction to quantum technologies used in education and public outreach, as very little background in quantum theory is needed and the practical applications are easily understood. There is considerably ...
Probing Hadron Scattering in Lattice Gauge Theories on Qudit Quantum Computers
Rohan Joshi, Jan C. Louw, M. Meth +5 more·Jul 16, 2025
An overarching goal in the flourishing field of quantum simulation for high-energy physics is the first-principles study of the microscopic dynamics of scattering processes on a quantum computer. Currently, this is hampered by small system sizes and ...
Efficient Qudit Circuit for Quench Dynamics of $2+1$D Quantum Link Electrodynamics
Rohan Joshi, M. Meth, Jan C. Louw +4 more·Jul 16, 2025
A major challenge in the burgeoning field of quantum simulation for high-energy physics is the realization of scalable $2+1$D lattice gauge theories on state-of-the-art quantum hardware, which is an essential step towards the overarching goal of prob...
Material Loss Model Calibration for Tantalum Superconducting Resonators
G. Moshel, Sergei Masis, Moshe Schechter +1 more·Jul 16, 2025
Material research is a key frontier in advancing superconducting qubit and circuit performance. In this work, we develop a simple and broadly applicable framework for accurately characterizing two-level system (TLS) loss using internal quality factor...
Heisenberg limited multiple eigenvalue estimation via off-the-grid compressed sensing
D. Castaldo, Stefano Corni·Jul 16, 2025
Quantum phase estimation is the flagship algorithm for quantum simulation on fault-tolerant quantum computers. We demonstrate that an \emph{off-grid} compressed sensing protocol, combined with a state-of-the-art signal classification method, enables ...
Quantum Circuits Are Just a Phase
Chris Heunen, Louis Lemonnier, Christopher McNally +1 more·Jul 15, 2025
Quantum programs today are written at a low level of abstraction - quantum circuits akin to assembly languages - and the unitary parts of even advanced quantum programming languages essentially function as circuit description languages. This state of...
Simulating and Sampling from Quantum Circuits with 2D Tensor Networks
M. S. Rudolph, Joseph Tindall·Jul 15, 2025
Classical simulations of quantum circuits play a vital role in the development of quantum computers and for taking the temperature of the field. Here, we classically simulate various physically-motivated circuits using 2D tensor network ans\"atze for...
Towards a Utility-Scale Quantum Edge Detection for Real-World Medical Image Data
Emmanuel Billias, Nikos Chrisochoides·Jul 15, 2025
We present a two-level decomposition strategy to enhance the quality and performance of Quantum Hadamard Edge Detection (QHED) for practical image analysis on Noisy Intermediate-Scale Quantum (NISQ) devices. A Data-Level Decomposition partitions an i...
Suppressing crosstalk for Rydberg quantum gates
Gina Warttmann, Florian Meinert, Hans Peter Büchler +1 more·Jul 14, 2025
We present a method to suppress crosstalk from implementing controlled-Z gates via local addressing in neutral atom quantum computers. In these systems, a fraction of the laser light that is applied locally to implement gates typically leaks to other...
From Linear Differential Equations to Unitaries: A Moment-Matching Dilation Framework with Near-Optimal Quantum Algorithms
Xiantao Li·Jul 14, 2025
Quantum speed-ups for dynamical simulation usually demand unitary time-evolution, whereas the large ODE/PDE systems encountered in realistic physical models are generically non-unitary. We present a universal moment-fulfilling dilation that embeds an...