Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Optimizing Quantum Data Embeddings for Ligand-Based Virtual Screening
Junggu Choi, Tak Hur, Seokhoon Jeong +5 more·Dec 18, 2025
Effective molecular representations are essential for ligand-based virtual screening. We investigate how quantum data embedding strategies can improve this task by developing and evaluating a family of quantum-classical hybrid embedding approaches. T...
Tunneling in double-well potentials within Nelson's stochastic mechanics: Application to ammonia inversion
Danilo F. Schafaschek, Giovani L. Vasconcelos, Antônio M. S. Macêdo·Dec 18, 2025
Nelson's stochastic mechanics formulates quantum dynamics as a real-time conservative diffusion process in which a particle undergoes Brownian-like motion with a fluctuation amplitude fixed by Planck's constant. While being mathematically equivalent ...
Q-RUN: Quantum-Inspired Data Re-uploading Networks
Wenbo Qiao, Shuaixian Wang, Peng Zhang +2 more·Dec 18, 2025
Data re-uploading quantum circuits (DRQC) are a key approach to implementing quantum neural networks and have been shown to outperform classical neural networks in fitting high-frequency functions. However, their practical application is limited by t...
Antisymmetrization of composite fermionic states for quantum simulations of nuclear reactions in first-quantization mapping
Ionel Stetcu·Dec 18, 2025
I present a first-quantization deterministic algorithm for antisymmetrizing a spatially separated target-projectile system containing $N_T$ and $N_p$ identical fermions, respectively. The method constructs a fully antisymmetric wavefunction from the ...
Multi-messenger tracking of coherence loss during bond breaking
Tian Wang, Nida Haram, Zack Dube +13 more·Dec 18, 2025
Coupled electronic and nuclear motions govern chemical reactions, yet disentangling their interplay during bond rupture remains challenging. Here we follow the light-induced fragmentation of Br$_2$ using a coincidence-based multi-messenger approach. ...
Analyzing the performance of CV-MDI QKD under continuous-mode scenarios
Yanhao Sun, Ziyang Chen, Xiangyu Wang +2 more·Dec 18, 2025
Continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) can address vulnerabilities on the detection side of a QKD system. The core of this protocol involves continuous-variable Bell measurements performed by an untru...
Discrete time crystals enhanced by Stark potentials in Rydberg atom arrays
Jian-Jia Wang, Ling-Zhi Tang, Yan-Xiong Du +1 more·Dec 18, 2025
Discrete time crystals (DTCs) are non-equilibrium phases in periodically driven systems that exhibit spontaneous breaking of discrete time-translation symmetry. The stabilization of most DTC phases is achieved via the disorder-induced many-body local...
Silicon T centre hyperfine structure and memory protection schemes
Nicholas Brunelle, Joshua Kanaganayagam, Mehdi Keshavarz +11 more·Dec 18, 2025
Combining the long-coherence of spin qubits and the capability to transmit information and entanglement through photons, spin-photon interfaces (SPIs) are a promising platform for networked quantum computation and long-distance quantum communication....
Correlated many-body quantum dynamics of the Peregrine soliton
D. Diplaris, G. A. Bougas, P. G. Kevrekidis +3 more·Dec 17, 2025
We explore the correlated dynamics underlying the formation of the quantum Peregrine soliton, a prototypical rogue-wave excitation, utilizing interaction quenches from repulsive to attractive couplings in an ultracold bosonic gas confined in a one-di...
Stationary two-qubit entanglement mediated by one-dimensional plasmonic nanoarrays
Luke C. Ugwuoke, Tjaart P. J. Krüger, Mark S. Tame·Dec 17, 2025
Entanglement is one of the key measures of quantum correlations present in nanophotonic systems, with promising applications in quantum optics and beyond. Previous studies have shown that the degree of entanglement between two quantum dot qubits is p...
Magneto-optical Kerr effect in pump-probe setups
Amir Eskandari-asl, Adolfo Avella·Dec 17, 2025
We develop a general theoretical framework for computing the time-resolved magneto-optical Kerr effect in ultrafast pump-probe setups, formulated within the Dynamical Projective Operatorial Approach (DPOA) and its application to the generalized linea...
Random coding for long-range continuous-variable QKD
Arpan Akash Ray, Boris Skoric·Dec 17, 2025
Quantum Key Distribution (QKD) schemes are key exchange protocols based on the physical properties of quantum channels. They avoid the computational-hardness assumptions that underlie the security of classical key exchange. Continuous-Variable QKD (C...
Optical coprocessor based on spontaneous Brillouin scattering
I. V. Vovchenko, A. A. Zyablovsky, A. A. Pukhov +1 more·Dec 17, 2025
Analog coprocessors for neural networks are an intensively developing field. They provide approximate results of computations for relatively low energy cost and at high speed. We show that a set of ring resonators with Brillouin interaction between p...
Full-field-of-view aberration correction for large arrays of focused beams
Yohann Machu, Gautier Creutzer, Clément Sayrin +1 more·Dec 17, 2025
We propose and implement an aberration correction method for the creation of extended arrays of spots well beyond the isoplanatic region of any optical system. The method relies on an extensive calibration of aberrations in terms of Zernike polynomia...
AC Stark effect or time-dependent Aharonov-Bohm effect for particle on a ring
Patrick Hinrichs, Douglas Singleton, Nader Inan·Dec 17, 2025
We study the effect of a time-varying solenoidal vector potential for a quantum particle confined to a ring. The setup appears to be a time-varying version of the Aharonov-Bohm effect, but since the particle moves in the presence of fields, it is not...
A Dough-Like Model for Understanding Double-Slit Phenomena
Ping-Rui Tsai, Tzay-Ming Hong·Dec 17, 2025
The probabilistic interference fringes observed in the double slit experiment vividly demonstrate the quantum superposition principle, yet they also highlight a fundamental conceptual challenge: the relationship between a system before and after the ...
Resource-resolved quantum fluctuation theorems in end-point measurement scheme
Sukrut Mondkar, Sayan Mondal, Ujjwal Sen·Dec 17, 2025
Fluctuation theorems provide universal constraints on nonequilibrium energy and entropy fluctuations, making them a natural framework to assess how and to what extent quantum resources become thermodynamically relevant. We develop a unified framework...
Tensor network approaches for plasma dynamics
Ryan J. J. Connor, Preetma Soin, Callum W. Duncan +1 more·Dec 17, 2025
The dynamics of plasmas are governed by a set of non-linear differential equations which remain challenging to solve directly for large 2D and 3D problems. Here we investigate how tensor networks could be applied to plasmas described by the Vlasov-Ma...
Closed-Form Optimal Quantum Circuits for Single-Query Identification of Boolean Functions
Leonardo Bohac·Dec 17, 2025
We study minimum-error identification of an unknown single-bit Boolean function given black-box (oracle) access with one allowed query. Rather than stopping at an abstract optimal measurement, we give a fully constructive solution: an explicit state ...
Higher-form entanglement asymmetry. Part I. The limits of symmetry breaking
Francesco Benini, Eduardo García-Valdecasas, Stathis Vitouladitis·Dec 17, 2025
Entanglement asymmetry is a relative entropy that faithfully diagnoses symmetry breaking in quantum states, possibly within a spatial subregion. In this work, we extend such framework to higher-form symmetries and compute entanglement asymmetry in th...