Quantum Brain

Papers

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

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27,749

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Research Volume

13,033 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

Enhancement of femtosecond photon echo signals from an inhomogeneously broadened InAs quantum dot ensemble using chirped pulses

Yuta Kochi, Yutaro Kinoshita, Masanari Watanabe +2 more·Oct 24, 2025

Photon echo (PE) techniques offer a promising approach to optical quantum memory, yet their implementation in conventional platforms, such as rare-earth-ion-doped crystals, is hindered by limited bandwidths. Semiconductor quantum dot (QD) ensembles, ...

physics.opticsQuantum Physics

Myopic Entropy Scheduling for Ramsey Magnetometry

Julian Greentree, William Moran, Rob Evans +3 more·Oct 24, 2025

This paper presents an entropy based adaptive measurement sequence strategy for quantum sensing of magnetic fields. To physically ground our ideas we consider a sensor employing a nitrogen vacancy center in diamond, however our approach is applicable...

Quantum PhysicsMathematical Physics

Harnessing Intrinsic Noise for Quantum Simulation of Open Quantum Systems

Sameer Dambal, Akira Sone, Yu Zhang·Oct 24, 2025

Simulating open quantum systems on quantum computers presents a fundamental challenge: open quantum dynamics are intrinsically nonunitary, whereas quantum computers operate through unitary evolution. Conventional approaches overcome this mismatch by ...

Quantum Physics

Fragmentation of Virtual Orbitals for Quantum Computing: Reducing Qubit Requirements through Many-Body Expansion

Federico Zahariev, Mark S. Gordon·Oct 23, 2025

The development of quantum computing for molecular simulations is constrained by the limited number of qubits available on current Noisy Intermediate-Scale Quantum (NISQ) devices. The present work introduces the Virtual Orbital Fragmentation (FVO) me...

Quantum Physicsphysics.chem-ph

Local-to-Global Entanglement Dynamics by Periodically Driving Impurities

Zhi-Xing Lin, Abhinav Prem, Shinsei Ryu +1 more·Oct 23, 2025

We study the entanglement dynamics of a one-dimensional spin chain subject to a local Floquet drive of a two-site impurity. We uncover a sharp transition in the entanglement dynamics as a function of the driving frequency. For large drive periods $T$...

Quantum Physicscond-mat.str-el

Electrical-control of third-order nonlinearity via Fano interference

Deniz Eren Mol, İbrahim Asrın Üzgüç, Ulaş Eyüpoğlu +6 more·Oct 23, 2025

Programmable photonic computers necessitate the integration of electrically-tunable compact components into the photonic devices. In the state-of-the-art photonic quantum computers~(PQCs), phase-shift and displacement gates can be implemented in an e...

physics.opticsphysics.app-phQuantum Physics

$\mathbb{Z}_2$ lattice gauge theories: fermionic gauging, transmutation, and Kramers-Wannier dualities

Lei Su·Oct 23, 2025

We generalize the gauging of $\mathbb{Z}_2$ symmetries by inserting Majorana fermions, establishing parallel duality correspondences for bosonic and fermionic lattice systems. Using this fermionic gauging, we construct fermionic analogs of $\mathbb{Z...

cond-mat.str-elcond-mat.stat-mechhep-latQuantum Physics

Analog Quantum Feature Selection with Neutral-Atom Quantum Processors

Jose J. Orquin-Marques, Carlos Flores-Garrigos, Alejandro Gomez Cadavid +5 more·Oct 23, 2025

We present a quantum-native approach to quantum feature selection (QFS) based on analog quantum simulation with neutral atom arrays, adaptable to a variety of academic and industrial applications. In our method, feature relevance-measured via mutual ...

Quantum Physics

Trapping, manipulating and probing ultracold atoms: a quantum technologies tutorial

Louise Wolswijk, Luca Cavicchioli, Giuseppe Vinelli +12 more·Oct 23, 2025

Engineered ultracold atomic systems are a valuable platform for fundamental quantum mechanics studies and the development of quantum technologies. At near zero absolute temperature, atoms exhibit macroscopic phase coherence and collective quantum beh...

cond-mat.quant-gasAtomic PhysicsQuantum Physics

Picosecond Wireless Synchronization with Entangled Photons via Grid-Based Quantum Coverage in Indoor Optical Systems

Hossein Safi, Mohammad Taghi Dabiri, Mazen Hasna +2 more·Oct 23, 2025

In this paper, we present a robust entanglement-assisted synchronization framework for indoor optical wireless systems that explicitly captures the coupling between spatial beam geometry and temporal synchronization accuracy. Unlike conventional appr...

Quantum Physicsphysics.optics

Classical Noise Inversion: A Practical and Optimal framework for Robust Quantum Applications

Dayue Qin, Ying Li, You Zhou·Oct 23, 2025

Quantum error mitigation is a critical technology for extracting reliable computations from noisy quantum processors, proving itself essential not only in the near term but also as a valuable supplement to fully fault-tolerant systems in the future. ...

Quantum Physics

A Gateway to Quantum Computing for Industrial Engineering

Emily L. Tucker, Mohammadhossein Mohammadisiahroudi·Oct 23, 2025

Quantum computing is rapidly emerging as a new computing paradigm with the potential to improve decision-making, optimization, and simulation across industries. For industrial engineering (IE) and operations research (OR), this shift introduces both ...

Quantum Physics

Mitigating Coherent Errors through a Decoherence-Resistant Variational Framework employing Stabilizer State

Giovanni Di Bartolomeo, Giulio Crognaletti, Angelo Bassi +1 more·Oct 23, 2025

Stabilizer states are a central resource in quantum information processing, underpinning a wide range of applications. While they can be efficiently generated via Clifford circuits, the presence of coherent errors, such as small-angle miscalibrations...

Quantum Physics

Parametric phase modulation in superconducting circuits

Zhuang Ma, Xianke Li, Hongyi Shi +4 more·Oct 23, 2025

Parametric modulation, valued for its versatility, is widely employed in superconducting circuits for quantum simulations and high-fidelity two-qubit gates. Conventionally, the qubit coupling strength is determined by the amplitude of the parametric ...

Quantum Physics

Efficient Floating-Point Arithmetic on Fault-Tolerant Quantum Computers

José E. Cruz Serrallés, Oluwadara Ogunkoya, Do{g}a Murat Kürkçüo{g}lu +5 more·Oct 23, 2025

We propose a novel floating-point encoding scheme that builds on prior work involving fixed-point encodings. We encode floating-point numbers using Two's Complement fixed-point mantissas and Two's Complement integral exponents. We used our proposed a...

Quantum Physics

Variational quantum simulation of many-body dissipative dynamics on a superconducting quantum processor

Huan-Yu Liu, Tai-Ping Sun, Zhao-Yun Chen +7 more·Oct 23, 2025

Open quantum systems host a wide range of intriguing phenomena, yet their simulation on well-controlled quantum devices is challenging, owing to the exponential growth of the Hilbert space and the inherently non-unitary nature of the dynamics. Here w...

Quantum Physics

Dimensionality-Changing Transition from a Non-Fermi Liquid to a Spin-Solid in a Multichannel Kondo Lattice

Simon Martin, Marcin Raczkowski, Fakher F. Assaad +1 more·Oct 22, 2025

A multichannel Kondo system, where a single quantum spin couples to multiple channels of an electronic bath, provides one of the simplest examples of a zero-dimensional non-Fermi liquid. It is natural to ask: what happens when an extensive number of ...

cond-mat.str-elQuantum Physics

Mind the gaps: The fraught road to quantum advantage

Jens Eisert, John Preskill·Oct 22, 2025

Quantum computing is advancing rapidly, yet substantial gaps separate today's noisy intermediate-scale quantum (NISQ) devices from tomorrow's fault-tolerant application-scale quantum (FASQ) machines. We identify four related hurdles along the road ah...

Quantum Physicscond-mat.other

Single Sr Atoms in Optical Tweezer Arrays for Quantum Simulation

Veronica Giardini, Luca Guariento, Andrea Fantini +6 more·Oct 22, 2025

We report on the realization of a platform for trapping and manipulating individual $^{88}$Sr atoms in optical tweezers. A first cooling stage based on a blue shielded magneto-optical trap (MOT) operating on the $^1S_0$ -> $^1P_1$ transition at 461 n...

Atomic Physicscond-mat.quant-gasQuantum Physics

Heisenberg-Limited Quantum Eigenvalue Estimation for Non-normal Matrices

Yukun Zhang, Yusen Wu, Xiao Yuan·Oct 22, 2025

Estimating the eigenvalues of non-normal matrices is a foundational problem with far-reaching implications, from modeling non-Hermitian quantum systems to analyzing complex fluid dynamics. Yet, this task remains beyond the reach of standard quantum a...

Quantum Physics
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