Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

Total Papers

27,749

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1,196

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Research Volume

13,046 papers in 12 months (-2% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

6,154 papers found

Noise-Induced Equalization in quantum learning models

Francesco Scala, Giacomo Guarnieri, Aurelien Lucchi·Nov 12, 2025

Quantum noise is known to strongly affect quantum computation, thus potentially limiting the performance of currently available quantum processing units. Even learning models based on variational quantum algorithms, which were designed to cope with t...

Quantum Physics

Efficient and Noise-Resilient Molecular Quantum Simulation with the Generalized Superfast Encoding

James Brown, Tarini S Hardikar, Kenny Heitritter +1 more·Nov 12, 2025

Simulating molecular systems on quantum computers requires efficient mappings from Fermionic operators to qubit operators. Traditional mappings such as Jordan-Wigner or Bravyi-Kitaev often produce high-weight Pauli terms, increasing circuit depth and...

Quantum Physics

Transversal Toffoli-gate in Hybrid-code System

Dawei Jiao, Mahdi Bayanifar, Alexei Ashikhmin +1 more·Nov 12, 2025

We study the transversality of the Toffoli gate in a hybrid-code system that employs two quantum error correction codes with special structure. We find that a system using a triorthogonal code with its paired code supports a fully transversal impleme...

Quantum Physics

Tensor Network Framework for Forecasting Nonlinear and Chaotic Dynamics

Jia-Bin You, Jian Feng Kong, Jun Ye·Nov 12, 2025

We present a tensor network model (TNM) for forecasting nonlinear and chaotic dynamics, bridging quantum many-body methods with classical complex systems. The TNM leverages hierarchical tensor contractions to encode non-Markovian temporal correlation...

Quantum Physics

Hybrid Photonic-Quantum Reservoir Computing For Time-Series Prediction

Oishik Kar, Aswath Babu H·Nov 12, 2025

Motivated by the perspective of advanced time-series prediction and exploitation of Quantum Reservoir Computing (QRC), we explored the design and implementation of a Hybrid Photonic-Quantum Reservoir Computing (HPQRC) paradigm. It brings together the...

Quantum Physics

Introduction to the Modern Theory of Bose-Einstein Condensation, Superfluidity, and Superconductivity

Phil Attard·Nov 12, 2025

The modern theory of Bose-Einstein condensation, superfluidity, and superconductivity is reviewed. The thermodynamic principle for superfluid flow and the equation of motion for condensed bosons are given. Computer simulations of Lennard-Jones $^4$He...

cond-mat.stat-mechcond-mat.quant-gascond-mat.supr-conphysics.chem-ph

Complex Eigenvalues in a pseudo-Hermitian \b{eta}-Laguerre ensemble

Cleverson Andrade Goulart, Gleb Oshanin, Mauricio Porto Pato·Nov 12, 2025

Non-Hermitian PT-symmetric models have been extensively studied in recent years. Following the seminal work that reduced classical random matrix ensembles to a tridiagonal form, several efforts have aimed to generalize this framework to non-Hermitian...

cond-mat.stat-mechMathematical PhysicsQuantum Physics

Hybrid Atomistic-Parametric Decoherence Model for Molecular Spin Qubits

Katy Aruachan, Sanoj Raj, Yamil J. Colón +2 more·Nov 11, 2025

Solid-state molecular qubits with open-shell ground states have great potential for addressability, scalability, and tunability, but understanding the fundamental limits of quantum coherence in these systems is challenging due to the complexity of th...

Quantum Physicsphysics.chem-ph

Experimental Realization of Thermal Reservoirs with Tunable Temperature in a Trapped-Ion Spin-Boson Simulator

Visal So, Mingjian Zhu, Midhuna Duraisamy Suganthi +5 more·Nov 11, 2025

We propose and demonstrate an experimental scheme to engineer thermal baths with independently tunable temperatures and dissipation rates for the motional modes of a trapped-ion system. This approach enables robust thermal-state preparation and quant...

Quantum Physicscond-mat.quant-gasAtomic Physicsphysics.chem-ph

The FLuid Allocation of Surface code Qubits (FLASQ) cost model for early fault-tolerant quantum algorithms

William J. Huggins, Tanuj Khattar, Amanda Xu +6 more·Nov 11, 2025

Holistic resource estimates are essential for guiding the development of fault-tolerant quantum algorithms and the computers they will run on. This is particularly true when we focus on highly-constrained early fault-tolerant devices. Many attempts t...

Quantum Physics

Reinforcement Learning Control of Quantum Error Correction

Volodymyr Sivak, Alexis Morvan, Michael Broughton +296 more·Nov 11, 2025

The promise of fault-tolerant quantum computing is challenged by environmental drift that relentlessly degrades the quality of quantum operations. The contemporary solution, halting the entire quantum computation for recalibration, is unsustainable f...

Quantum Physics

Hybrid Quantum-Classical Selective State Space Artificial Intelligence

Amin Ebrahimi, Farzan Haddadi·Nov 11, 2025

Hybrid Quantum Classical (HQC) algorithms constitute one of the most effective paradigms for exploiting the computational advantages of quantum systems in large-scale numerical tasks. By operating in high-dimensional Hilbert spaces, quantum circuits ...

Quantum PhysicsAIcs.CL

Quantum annealing for lattice models with competing long-range interactions

Jan Alexander Koziol, Kai Phillip Schmidt·Nov 11, 2025

We use superconducting qubit quantum annealing devices to determine the ground state of Ising models with algebraically decaying competing long-range interactions in the thermodynamic limit. This is enabled by a unit-cell-based optimization scheme, i...

Quantum Physicscond-mat.str-elphysics.comp-ph

Enhancing Circuit Fidelity in Transmon Qubit Rings via Operation Duration Tuning under Strong Connectivity Noise

Quan Fu, Xin Wang, Rui Xiong·Nov 11, 2025

Superconducting transmon qubits are a promising platform for quantum computation, yet they face significant fidelity degradation due to connectivity noise, particularly in the intermediate coupling regime where noise levels are substantial. While pri...

Quantum PhysicsMesoscale Physics

A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms

Chen Chen, Kejun Liu, Dezhou Deng +6 more·Nov 11, 2025

We present a compact design of dual-beam Zeeman slower optimized for efficient production of cold atom applications. Traditional single-beam configurations face challenges from substantial residual atomic flux impacting downstream optical windows, re...

Atomic PhysicsQuantum Physics

Quantum-centric machine learning for molecular dynamics

Yanxian Tao, Lingyun Wan, Xiongzhi Zeng +4 more·Nov 11, 2025

Accurate and efficient prediction of electronic wavefunctions is central to ab initio molecular dynamics (AIMD) and electronic structure theory. However, conventional ab initio methods require self-consistent optimization of electronic states at ever...

physics.chem-phQuantum Physics

New XOR & XNOR Operations in Instantaneous Noise-Based Logic

Nasir Kenarangui, Arthur Powalka, Laszlo B. Kish·Nov 11, 2025

Instantaneous Noise-Based Logic (INBL) presents a classical noise-based computing framework as an alternative to quantum computation, though some logic gates remain unimplemented for achieving universality over superpositions. INBL encodes M noise-...

Physics

Optimal phase estimation in the presence of correlated dephasing

Srijon Ghosh, Arkadiusz Kobus, Stanisław Kurdziałek +1 more·Nov 10, 2025

We investigate optimal metrological protocols for phase estimation in the presence of correlated dephasing noise, including spin-squeezed states sensing strategies as well as parallel and adaptive protocols optimized using tensor-network based numeri...

Quantum Physics

Achieving fast and robust perfect entangling gates via reinforcement learning

Leander Grech, Matthias G. Krauss, Mirko Consiglio +4 more·Nov 10, 2025

Noisy intermediate-scale quantum computers hold the promise of tackling complex and otherwise intractable computational challenges through the massive parallelism offered by qubits. Central to realizing the potential of quantum computing are perfect ...

Quantum Physics

Rejection of wavefront aberrations in an atomic gradiometer

Louis Pagot, Sébastien Merlet, Leonid A Sidorenkov +1 more·Nov 10, 2025

One of the main residual limitations of inertial sensors based on atom interferometry stems from laser beam distortions, which cause parasitic phase shifts and non-homogeneous matter-light couplings. Here we present numerical simulations, accompanied...

Atomic PhysicsQuantum Physics
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