Papers

Sebastian Schlösser, Matthias Kleinmann·Mar 1, 2026

We study the prepare-and-measure scenario in which Alice transmits a quantum system to Bob, who then performs a quantum measurement. The quantum state of the system is unknown to Bob, and the measurement is unknown to Alice. It has recently been show...

Rui Xian Siew, Shailesh Chandrasekharan, Tanmoy Bhattacharya·Mar 1, 2026

We show that a simple qubit-regularized $\mathrm{SU}(3)$ lattice gauge theory (LGT) on a plaquette chain admits a continuum limit with massive glueball excitations, providing a minimal toy model of strong interactions without quarks. By mapping the p...

Sounak Kar, Arpan Mukhopadhyay·Mar 1, 2026

Quantum networks are envisioned to enable reliable distribution and manipulation of quantum information across distances, forming the foundation of a future quantum internet. The fair and efficient allocation of communication resources in such networ...

H. -X Luo, C. Li, J. -L. Ren +7 more·Mar 1, 2026

Single photons are the flying qubits of choice for distributing entanglement in a quantum internet. Quantum memories embedded in quantum repeaters are crucial to overcome transmission loss and enhance the rate of quantum communication. A multimode me...

Fernando C. Lombardo, Paula I. Villar·Mar 1, 2026

We analyze the geometric phase and dynamic phase acquired by a qubit coupled to an environment through pure dephasing, establishing a direct connection between phase accumulation and ergotropy. We show that the dynamic phase depends solely on the inc...

James Tian·Mar 1, 2026

This paper studies multipartite observables formed from sums of local self-adjoint contractions on tensor product Hilbert spaces. The square of such a sum has a parity structure: after decomposing each local product into commutator and anticommutator...

Hillol Biswas, Kyriakos E. Zoiros·Mar 1, 2026

The current state, emerging trends, and practical challenges of optical fiber-based power network SCADA quantum communication must be addressed to fully utilize the technological platform's potential in real-world power system SCADA communications in...

Mark Broom, Talel Naccache, Emmanuel M. Pothos +2 more·Mar 1, 2026

Scientific inquiry seeks causal explanations of observed phenomena. The Bell experiment provides a paradigmatic case, revealing correlations between spatially separated systems that no local model can reproduce. Such correlations, known as Bell non-l...

Peter Høyer, Jibran Rashid, Razeen ud Din·Mar 1, 2026

Given the goal of maximizing CHSH violation, we compare the optimal strategies of entanglement and nonlocality distillation. In the limit of the number of copies of the shared state, entanglement distillation is guaranteed to work by generating a Bel...

Makoto Ishihara, Wojciech Roga, Masahiro Takeoka·Mar 1, 2026

Multipartite device-independent quantum key distribution (DI-QKD), also known as device-independent conference key agreement, enables more than two remote parties to share a common key with information-theoretic security even without trusting the dev...

Jiang Liu·Mar 1, 2026

Although the $k$-mode marginal distributions of Canonical Boson Sampling (CBS) are known to be computable in polynomial time, the physical mechanism driving this computational efficiency remains mathematically opaque. In this work, we provide a direc...

Yonghae Lee, Taewan Kim·Mar 1, 2026

We present a deterministic framework for preparing an arbitrary three-qubit pure state. To leverage entanglement structure in the state-preparation task, we classify three-qubit pure states into five types with respect to a $1|2$ bipartition. Given a...

Shaba Shaon, Christopher G. Brinton, Dinh C. Nguyen·Mar 1, 2026

Quantum federated learning (QFL) combines the robust data processing of quantum computing with the privacy-preserving features of federated learning (FL). However, in large-scale wireless networks, optimizing sum-rate is crucial for unlocking the tru...

Maxwell Poster, Jason Chadwick, Jonathan Mark Baker·Feb 28, 2026

Quantum error correction (QEC) promises to exponentially suppress qubit noise, but typically assumes spatially-uniform and temporally-constant noise rates. However, real quantum hardware exhibits variation in noise levels over time, which will be amp...

Errico J. Russo, James Schneeloch, Edwin E. Hach +3 more·Feb 28, 2026

We construct stationary coherent states concentrated on Lissajous figures of the isotropic and anisotropic harmonic oscillators, the latter having coprime frequencies, by projecting products of ordinary coherent states (one coherent state for each de...

Bayram Yüksel Eker, Suayb S. Arslan, Özgür Nazlı +2 more·Feb 28, 2026

Autonomous navigation under uncertainty requires solving partially observable Markov decision processes (POMDPs) for planning and assigning sensor measurements to tracked targets--a task known as multi-target data association (MTDA). Both problems be...

Julian Lyne, Kai Phillip Schmidt, Claudiu Genes +1 more·Feb 28, 2026

Collective radiance effects in quantum degenerate systems, such as superradiance and subradiance of a partially inverted ensemble, are shaped by the interplay of spatial confinement and exchange statistics. We investigate this interplay using a purel...

Bo Peng, Yuan Liu, Karol Kowalski·Feb 28, 2026

We present COMPOSER, a compile-once modular parametric oracle for similarity-encoded effective reduction of electronic-structure operators (e.g., Schrieffer-Wolff-type constructions). Low-rank factorizations compress Hamiltonians and anti-Hermitian g...

Qiben Yan, John P. T. Stenger, Daniel Gunlycke·Feb 28, 2026

Data flow scheduling for high-throughput multibeam satellites is a challenging NP-hard combinatorial optimization problem. As the problem scales, traditional methods, such as Mixed-Integer Linear Programming and heuristic schedulers, often face a tra...

I. A. Nechaev, V. M. Silkin, E. E. Krasovskii·Feb 28, 2026

A higher-order relativistic k.p model is developed to describe plasmon excitations in two-dimensional (2D) electronic systems with spin-orbit coupling (SOC) and magnetic-exchange interactions. Derived entirely from ab initio band structure, the model...