Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Quantum interference effects in two-photon scattering by a macroscopic lossy sphere
A. Ciattoni·Oct 31, 2025
We investigate the quantum optical scattering of two-photon wavepackets by a macroscopic lossy sphere by means of macroscopic quantum electrodynamics in the form of modified Langevin noise formalism. The two ingoing photons with arbitrary frequency-p...
Entanglement in the energy-constrained prepare-and-measure scenario: applications to randomness certification and channel discrimination
Raffaele D'Avino, Gabriel Senno, Mir Alimuddin +1 more·Oct 31, 2025
Quantum information tasks are often analyzed under varying trust assumptions about the devices involved. The semi-device-independent (SDI) framework offers a balance between needed assumptions and experimental feasibility. In this work, we study the ...
Experimental Quantum Channel Purification
Yue-Yang Fei, Zhenhuan Liu, Rui Zhang +7 more·Oct 31, 2025
Quantum networks, which integrate multiple quantum computers and the channels connecting them, are crucial for distributed quantum information processing but remain inherently susceptible to channel noise. Channel purification emerges as a promising ...
Area-Law Entanglement in Quantum Chaotic System
Chunyin Chen, Sizhe Yan, Biao Wu·Oct 31, 2025
Entanglement entropy is a fundamental diagnostic for quantum chaos, typically exhibiting volume-law scaling in highly excited eigenstates of chaotic many-body systems. In this work, we present a striking counterexample: a Floquet-driven quantum many-...
The role of entanglement in energy-restricted communication and randomness generation
Carles Roch I Carceller, Armin Tavakoli·Oct 31, 2025
A promising platform for semi-device-independent quantum information is prepare-and-measure experiments restricted only by a bound on the energy of the communication. Here, we investigate the role of shared entanglement in such scenarios. For classic...
Auxiliary-state facilitated phase synchronization phenomena in isolated spin systems
Xylo Molenda, S. Zhong, B. Viswanathan +4 more·Oct 31, 2025
Extending classical synchronization to the quantum domain is of great interest both from the fundamental physics point of view and with a view toward quantum technology applications. This work characterizes phase synchronization of an effective spin-...
Long-lived giant circular Rydberg atoms at room temperature
Einius Pultinevicius, Aaron Götzelmann, Fabian Thielemann +2 more·Oct 31, 2025
Stability achieved by large angular momentum is ubiquitous in nature, with examples ranging from classical mechanics, over optics and chemistry, to nuclear physics. In atoms, angular momentum can protect excited electronic orbitals from decay due to ...
Quantum Secret Sharing Scheme on Hypercyclic Quantum Structures
Lei Li, Zhi Li·Oct 31, 2025
This paper investigates the construction of efficient quantum secret sharing schemes for quantum access structures based on hypergraphs with three hyperedges. We prove that hypercycles with three hyperedges are quantum access structures if and only i...
Modeling partially-ionized dense plasma using wavepacket molecular dynamics
Daniel Plummer, Pontus Svensson, Wiktor Jasniak +3 more·Oct 31, 2025
We develop a wave packet molecular dynamics framework for modeling the structural properties of partially-ionized dense plasmas, based on a chemical model that explicitly includes bound state wavefunctions. Using hydrogen as a representative system, ...
Complete characterization of beam deflection based on double weak value amplification system
Yu Wang, Rongguo Yang, Jing Zhang +4 more·Oct 31, 2025
The precise measurement of spatial attitude parameters is critical for applications in inertial navigation, industrial monitoring, instrument calibration, quantum metrology, etc. In this work, we theoretically investigate and experimentally realize t...
Revisiting quantum walk advantages: A mean hitting time perspective
Jan Wójcik·Oct 31, 2025
The mean squared displacement has been widely used as the primary metric for comparing quantum and classical random walks, with quantum walks showing quadratic scaling versus linear scaling for classical walks. However, this comparison may not captur...
Room-Temperature Quantum Simulation with Atomically Thin Nuclear Spin Layers in Diamond
Philipp J. Vetter, Christoph Findler, Antonio Verdú +8 more·Oct 31, 2025
Quantum simulation aims to recreate complex many-body phenomena in controlled environments, offering insights into dynamics that are otherwise difficult to model. Existing platforms, however, are often complex and costly to scale, typically requiring...
Manipulating Excitation Dynamics in Structured Waveguide Quantum Electrodynamics
I Gusti Ngurah Yudi Handayana, Ya-Tang Yu, Wei-Hsuan Chung +1 more·Oct 31, 2025
Waveguide quantum electrodynamics (wQED) has become a central platform for studying collective light-matter interactions in low-dimensional photonic environments. While conventional wQED systems rely on uniform chirality or reciprocal emitter-wavegui...
Instruction-Directed MAC for Efficient Classical Communication in Scalable Multi-Chip Quantum Systems
Maurizio Palesi, Enrico Russo, Hamaad Rafique +4 more·Oct 31, 2025
Scalable quantum computing requires modular multi-chip architectures integrating multiple quantum cores interconnected through quantum-coherent and classical links. The classical communication subsystem is critical for coordinating distributed contro...
Maximal extension on converse monogamy of entanglement for tripartite pure states
Junhyeong An, Soojoon Lee·Oct 31, 2025
Unlike classical correlations, entanglement cannot be freely shared among multiple parties. This unique feature of quantum systems is known as the monogamy of entanglement. While it holds for all multipartite pure states, its converse -- weak entangl...
Derive Einstein equation from CFT entanglement entropy
Xin Jiang, Haitang Yang·Oct 31, 2025
We explicitly show how to derive the $(D+1)$-dimensional Einstein equation from the entanglement entropy between codimension-one {\it disjoint} regions in $D$-dimensional conformal field theory.
Zitterbewegung Effect and Quantum Geometry in Non-Hermitian Exciton-Polariton Systems
Yow-Ming Robin Hu, Elena A. Ostrovskaya, Eliezer Estrecho·Oct 31, 2025
In this work, we analytically derive a semi-classical equation of motion describing the zitterbewegung effects arising in the dynamics of wavepackets in non-Hermitian systems. In Hermitian non-relativistic quantum systems, the zitterbewegung effects ...
Geometry-Driven Resonance and Localization of Light in Fractal Phase Spaces
L. Yıldız, D. Kaykı, M. F. Ciappina·Oct 31, 2025
Geometry can fundamentally govern the propagation of light, independent of material constraints. Here, we demonstrate that a fractal phase space, endowed with a non-Euclidean, scale-dependent geometry, can intrinsically induce resonance quantization,...
Optical Vortices: Revolutionizing the field of linear and nonlinear optics
Bikash K. Das, Camilo Granados, Marcelo F. Ciappina·Oct 31, 2025
Light is the fundamental medium through which we perceive the world around us. In the modern era, light can not only be used in its raw form but can also be used as a versatile tool. Generally, light fields carry energy and momentum (both linear and ...
Benchmarking Proton Tunneling Splittings with a Wavefunction-Based Double-Well Model: Application to the Formic Acid Dimer
Krishna Kingkar Pathak·Oct 31, 2025
Proton tunneling across hydrogen bonds is a fundamental quantum effect with implications for spectroscopy, catalysis, and biomolecular stability. While state-of-the-art instanton and path-integral methods provide accurate multidimensional tunneling s...