Quantum Brain

Papers

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

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27,228

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12,685 papers in 12 months (-11% vs prior quarter)

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

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6,077 papers found

Quantum science with arrays of metastable helium-3 atoms

Zheyuan Li, Rupsa De, Rishi Sivakumar +7 more·Jan 11, 2026

The motion of atoms in programmable optical tweezer arrays offers many new opportunities for neutral atom quantum science. These include inter- and intra-site atom motion for resource-efficient implementations of fermionic and bosonic modes, respecti...

Quantum Physicscond-mat.quant-gasAtomic Physics

Rydberg atom parity gate based on dark state resonances

Sinchan Snigdha Rej, Snigdhadev Ray, Bimalendu Deb·Jan 10, 2026

Quantum computation (QC) and digital quantum simulation (DQS) essentially require two- or multi-qubit controlled-NOT or -phase gates. We propose an alternative pathway for QC and DQS using a three-qubit parity gate in a Rydberg atom array. The basic ...

Quantum Physics

Magnetic levitation and spatial superposition of a nanodiamond with a current-carrying chip

Qian Xiang, Shafaq Gulzar Elahi, Andrew Geraci +2 more·Jan 10, 2026

We propose a current-carrying-chip scheme for generating spatial quantum superpositions using a levitating nanodiamond with a built-in nitrogen-vacancy (NV) centre defect. Our setup is quite versatile and we aim to create the superposition for a mass...

Quantum Physics

Fault-Tolerant Quantum Error Correction: Implementing Hamming-Based Codes with Advanced Syndrome Extraction Techniques

Soham Bhadra, Diyansha Singh, Angana Chowdhury·Jan 10, 2026

Building reliable quantum computers requires protecting fragile quantum states from inevitable environmental noise and operational errors. While quantum error correction codes like the Steane $[\![7,1,3]\!]$ code provide elegant theoretical solutions...

Quantum PhysicsEmerging Tech

Controlling Rydberg atom-polariton interactions: from exceptional points to fast readout

Tamara Šumarac, Emily H. Qiu, Shai Tsesses +8 more·Jan 9, 2026

Rydberg atoms represent a platform underpinning many recent developments in quantum computation, simulation, sensing, and metrology. They further facilitate optical nonlinearity at the single-photon level when coupled to photons propagating in atomic...

Atomic Physicscond-mat.quant-gasQuantum Physics

Quantum algorithm for dephasing of coupled systems: decoupling and IQP duality

Sabrina Yue Wang, Raul A. Santos·Jan 9, 2026

Noise and decoherence are ubiquitous in the dynamics of quantum systems coupled to an external environment. In the regime where environmental correlations decay rapidly, the evolution of a subsytem is well described by a Lindblad quantum master equat...

Quantum Physicscond-mat.str-el

Scaleable LED-pumped Room-temperature Maser using a Multi-blade Optical Injector

Mingyang Liu, Zike Cheng, Ziqiu Huang +3 more·Jan 9, 2026

Though the performance of room-temperature masers has improved over the last decade, relatively little attention has been paid to the optics used to pump the maser's gain medium. In this work, we investigate a novel multi-blade optical ``injector'' t...

physics.opticsQuantum Physics

Counterdiabatic ADAPT-VQE for molecular simulation

Diego Tancara, Herbert Díaz-Moraga, Dardo Goyeneche·Jan 9, 2026

Among variational quantum algorithms designed for NISQ devices, ADAPT-VQE stands out for its robustness against barren plateaus, particularly in estimating molecular ground states. On the other hand, counterdiabatic algorithms have shown advantages i...

Quantum Physics

Continuous-time noise mitigation in analogue quantum simulation

Gabriele Bressanini, Yue Ma, Hyukjoon Kwon +1 more·Jan 9, 2026

Analogue quantum simulators offer a promising route to explore quantum many-body dynamics beyond classical reach in the near term. However, their vulnerability to noise limits the accuracy of simulations. Here, we establish a new framework for mitiga...

Quantum Physics

Universal Dilation of Linear Itô SDEs: Quantum Trajectories and Lindblad Simulation of Second Moments

Hsuan-Cheng Wu, Xiantao Li·Jan 9, 2026

We present a universal framework for simulating $N$-dimensional linear Itô stochastic differential equations (SDEs) on quantum computers with additive or multiplicative noises. Building on a unitary dilation technique, we establish a rigorous mapping...

Quantum Physics

Dynamical entanglement percolation with spatially correlated disorder

Lorenzo Cirigliano, Valentina Brosco, Claudio Castellano +3 more·Jan 9, 2026

The distribution of entanglement between the nodes of a quantum network plays a fundamental role in quantum information applications. In this work, we investigate the dynamics of a network of qubits where each edge corresponds to an independent two-q...

Quantum Physicscond-mat.dis-nn

On the robustness of Quantum Phase Estimation to compute ground properties of many-electron systems

Wassil Sennane, Jérémie Messud·Jan 9, 2026

We propose an analysis of the Quantum Phase Estimation (QPE) algorithm applied to electronic systems by investigating its free parameters such as the time step, number of phase qubits, initial state preparation, number of measurement shots, and param...

Quantum Physics

Quantum Interference-Induced Bhattacharyya Distance

Mostafizur Rahaman Laskar·Jan 9, 2026

We propose a quantum distance measure between probability distributions encoded in quantum states based on the fragility of quantum interference under entangling evolution. The Quantum Interference-Induced Bhattacharyya Distance (QIBD) is defined thr...

Quantum Physics

Block Encoding Linear Combinations of Pauli Strings Using the Stabilizer Formalism

Niclas Schillo, Andreas Sturm, Rüdiger Quay·Jan 9, 2026

The Quantum Singular Value Transformation (QSVT) provides a powerful framework with the potential for quantum speedups across a wide range of applications. Its core input model is the block encoding framework, in which non-unitary matrices are embedd...

Quantum Physics

Feature Entanglement-based Quantum Multimodal Fusion Neural Network

Yu Wu, Qianli Zhou, Jie Geng +2 more·Jan 9, 2026

Multimodal learning aims to enhance perceptual and decision-making capabilities by integrating information from diverse sources. However, classical deep learning approaches face a critical trade-off between the high accuracy of black-box feature-leve...

Quantum PhysicsAIcs.LG

Scalable Suppression of XY Crosstalk by Pulse-Level Control in Superconducting Quantum Processors

Hui-Hang Chen, Chiao-Hsuan Wang·Jan 8, 2026

As superconducting quantum processors continue to scale, high-performance quantum control becomes increasingly critical. In densely integrated architectures, unwanted interactions between nearby qubits give rise to crosstalk errors that limit operati...

Quantum Physics

Interacting electrons in silicon quantum interconnects

Anantha S. Rao, Christopher David White, Sean R. Muleady +2 more·Jan 8, 2026

Coherent interconnects between gate-defined silicon quantum processing units are essential for scalable quantum computation and long-range entanglement. We argue that one-dimensional electron channels formed in the silicon quantum well of a Si/SiGe h...

Mesoscale Physicscond-mat.dis-nncond-mat.str-elQuantum Physics

Chiral Graviton Modes in Fermionic Fractional Chern Insulators

Min Long, Zeno Bacciconi, Hongyu Lu +3 more·Jan 8, 2026

Chiral graviton modes are hallmark collective excitations of Fractional Quantum Hall (FQH) liquids. However, their existence on the lattice, where continuum symmetries that protect them from decay are lost, is still an open and urgent question, espec...

cond-mat.str-elQuantum Physics

Quantum Elastic Network Models and their Application to Graphene

Ioannis Kolotouros, Adithya Sireesh, Stuart Ferguson +3 more·Jan 8, 2026

Molecular dynamics simulations are a central computational methodology in materials design for relating atomic composition to mechanical properties. However, simulating materials with atomic-level resolution on a macroscopic scale is infeasible on cu...

Quantum Physicscond-mat.mtrl-sciphysics.comp-ph

Simulation of noisy quantum circuits using frame representations

Janek Denzler, Jose Carrasco, Jens Eisert +1 more·Jan 8, 2026

One of the core research questions in the theory of quantum computing is to find out to what precise extent the classical simulation of a noisy quantum circuits is possible and where potential quantum advantages can set in. In this work, we introduce...

Quantum Physics
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