Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Gates via Dynamical Decoupling of Central Qubit on IBMQ and 15NV Center in Diamond
Lucas Tsunaki, Michael Dotan, Kseniia Volkova +1 more·Sep 26, 2025
We demonstrate a hardware-agnostic protocol for realizing fast, high-fidelity gates through dynamical decoupling (DD) pulse sequences applied to a central qubit coupled to target qubits. The target qubits are controlled by leveraging their intrinsic ...
Introduction to modelling radical pair quantum spin dynamics with tensor networks
Kentaro Hino, Damyan S. Frantzov, Yuki Kurashige +1 more·Sep 26, 2025
Radical pairs (also known as spin qubit pairs, electron-hole pairs) are transient reaction intermediates that are found and utilised in all areas of science. Radical pair spin dynamics simulations including all nuclear spins have been a computational...
Quantum simulation approach to ultra-weak magnetic anisotropy in a frustrated spin-1/2 antiferromagnet
Ki Won Jeong, Jae Yeon Seo, Sunghyun Lim +6 more·Sep 26, 2025
The intrinsic equivalence between electron spin and qubit offers a natural foundation for quantum simulations of magnetic materials. However, incorporating magnetocrystalline anisotropy (MCA), a key feature of real magnets, remains a major challenge....
The 2T-quoctit: a two-mode bosonic qudit for high energy physics
Doga Murat Kürkçüoglu, Henry Lamm, Oluwadara Ogunkoya +1 more·Sep 26, 2025
In this work, we study a two-mode bosonic encoding of a quoctit inside a non-Abelian group-structured constellation of coherent states. This work is motivated by the importance of nonabelian symmetry in particle physics and the desire to have transve...
Propagation Dynamics and Transient Amplification in Warm and Cold Atomic EIT Systems
Andrew MacRae, Connor Kupchak·Sep 26, 2025
We study the limitations on observing transient amplification in atomic systems exhibiting electromagnetically induced transparency (EIT) and evaluate the limits of optical Bloch equation (OBE) models. Using propagation-based Maxwell-Bloch simulation...
Quantum lattice Boltzmann algorithm for heat transfer with phase change
Christopher L. Jawetz, Zhixin Song, Spencer H. Bryngelson +1 more·Sep 25, 2025
Heat transfer involving phase change is computationally intensive due to moving phase boundaries, nonlinear computations, and time step restrictions. This paper presents a quantum lattice Boltzmann method (QLBM) for simulating heat transfer with phas...
From VQE To SQD: Modern Quantum Algorithms For The Electronic Structure Problem
Abdelmouheymen Rabah Khamadja, Mohamed Taha Rouabah·Sep 25, 2025
This thesis investigates sampling-based quantum algorithms for electronic ground state energy estimation, focusing on Quantum-Selected Configuration Interaction (QSCI) and Sample-Based Quantum Diagonalization (SQD) as near-term alternatives to the Va...
Dynamic RIS-Assisted THz Quantum Networks: Joint Optimization of Entanglement Generation and Fidelity under Channel Impairments
Shakil Ahmed·Sep 25, 2025
Quantum networks (QNs) supported by terahertz (THz) wireless links present a transformative alternative to fiber-based infrastructures, particularly in mobile and infrastructure-scarce environments. However, signal attenuation, molecular absorption, ...
Path-Controlled Secure Network Coding
Masahide Sasaki, Te Sun Han, Mikio Fujiwara +3 more·Sep 25, 2025
Multicast for securely sharing confidential data among many users is becoming increasingly important. Currently, it relies on duplicate-and-forward routing and cryptographic methods based on computational security. However, these approaches neither a...
Quantum Simulation and Energy Estimation for Discretized Anharmonic oscillator
Saurav Suman, Bikash K. Behera, Vivek Vyas +1 more·Sep 25, 2025
Anharmonic potential quantum system play crucial role in physics as they provide a more realistic description of oscillatory phenomena, which often deviate from the idealized harmonic model. However, simulating such system on classical computers is h...
Quantum Algorithm for Subcellular Multiscale Reaction-Diffusion Systems
Margot Lockwood, Nathan Wiebe, Connah Johnson +5 more·Sep 25, 2025
Computational modeling of cellular systems, where reactants are governed by biochemical equations and physical representations, requires extensive classical computing resources. These limitations significantly constrain the system size and spatiotemp...
Bridging Quantum Computing and Nuclear Structure: Atomic Nuclei on a Trapped-Ion Quantum Computer
Sota Yoshida, Takeshi Sato, Takumi Ogata +1 more·Sep 25, 2025
We demonstrate quantum simulations of strongly correlated nuclear many-body systems on the RIKEN-Quantinuum Reimei trapped-ion quantum computer, targeting ground states of oxygen, calcium, and nickel isotopes. By combining a hard-core-boson represent...
Quantum Simulation of Fermions in $AdS_2$ Black Hole: Chirality, Entanglement, and Spectral Crossovers
Kazuki Ikeda, Yaron Oz·Sep 25, 2025
We consider free Dirac fermions on a discretized $AdS_2$ black hole background, and analyze how curved space redshift, horizons, and the spin connection induced chiral gravitational effect shape spectral, transport, and scrambling phenomena. The syst...
Excited-CAFQA: A classical simulation bootstrap for the variational estimation of molecular excited states
Bikrant Bhattacharyya, Gokul Ravi·Sep 24, 2025
Variational Quantum Algorithms (VQAs) are iterative algorithms suited to implementation on current-era quantum devices. VQAs employ classical optimization to minimize cost functions evaluated on quantum circuits. However, the extent to which VQAs man...
(2+1)D Quantum Electrodynamics at Finite Density on a Quantum Computer
Emil Otis Rosanowski, Arianna Crippa, Lena Funcke +3 more·Sep 24, 2025
In this paper, we explore (2+1)D quantum electrodynamics (QED) at finite density on a quantum computer, including two fermion flavors. Our method employs an efficient gauge-invariant ansatz together with a quantum circuit structure that enforces Gaus...
Superfluid-Mott transition in a frustrated triangular optical lattice
Mehedi Hasan, Luca Donini, Sompob Shanokprasith +7 more·Sep 24, 2025
Geometric frustration can significantly increase the complexity and richness of many-body physics and, for instance, suppress antiferromagnetic order in quantum magnets. Here, we employ ultracold bosonic $^{39}$K atoms in a triangular optical lattice...
Quantum speed limits based on Jensen-Shannon and Jeffreys divergences for general physical processes
Jucelino Ferreira de Sousa, Diego Paiva Pires·Sep 24, 2025
We discuss quantum speed limits (QSLs) for finite-dimensional quantum systems undergoing general physical processes. These QSLs were obtained using two families of entropic measures, namely the square root of the Jensen-Shannon divergence, which in t...
AI-enhanced Quantum Simulation of Schwinger Model
Ao-Ning Wang, Min-Quan He, Z. D. Wang·Sep 24, 2025
The Schwinger Model from Quantum Electrodynamics (QED) has long served as a valuable simplified model for exploring key physical phenomena in Quantum Chromodynamics (QCD)-a field rich with fundamental insights but is substantially more complex. While...
You Only Measure Once: On Designing Single-Shot Quantum Machine Learning Models
Chen-Yu Liu, Leonardo Placidi, Kuan-Cheng Chen +2 more·Sep 24, 2025
Quantum machine learning (QML) models conventionally rely on repeated measurements (shots) of observables to obtain reliable predictions. This dependence on large shot budgets leads to high inference cost and time overhead, which is particularly prob...
Dynamically Optimal Unraveling Schemes for Simulating Lindblad Equations
Yu Cao, Mingfeng He, Xiantao Li·Sep 24, 2025
Stochastic unraveling schemes are powerful computational tools for simulating Lindblad equations, offering significant reductions in memory requirements. However, this advantage is accompanied by increased stochastic uncertainty, and the question of ...