Quantum Brain

Papers

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

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28,582

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299

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13,638 papers in 12 months (-16% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

28,582 papers found

Quantum memristor with vacuum--one-photon qubits

S. D. Micco, Beatrice Polacchi, Taira Giordani +1 more·Mar 4, 2025

Quantum memristors represent a promising interface between quantum and neuromorphic computing, combining the nonlinear, memory-dependent behavior of classical memristors with the properties of quantum states. An optical quantum memristor can be reali...

Physics

Probing non-ergodicity and symmetry via coherent forward scattering in a shaken rotor

F. Arrouas, J. Hébraud, N. Ombredane +9 more·Mar 3, 2025

The Coherent Backscattering (CBS) peak is a well-known interferential signature of weak localization in disordered or chaotic systems. More recently, a second interference feature -- the Coherent Forward Scattering (CFS) peak -- was predicted to emer...

cond-mat.quant-gasQuantum Physics

Universal whirling magnetic orders in non-Heisenberg Tsai-type quasicrystal approximants

Farid Labib, Kazuhiro Nawa, Yusuke Nambu +9 more·Mar 3, 2025

Magnetic orders of non-Heisenberg Tsai-type 1/1 approximant crystals (ACs) in the Au-Ga-Dy system were studied through bulk magnetization, neutron diffraction, and inelastic neutron scattering techniques. The results uncovered noncoplanar, ferromagne...

cond-mat.str-elcond-mat.mtrl-sciQuantum Physics

Fragility of Magic State Distillation under Imperfect Measurements

Yunzhe Zheng, Yuanchen Zhao, Dong E. Liu·Mar 3, 2025

Magic state distillation (MSD) is the leading approach to generate the non-Clifford resources required for universal fault-tolerant quantum computation. While most analyses assume ideal measurements in the distillation process, this assumption breaks...

Quantum Physics

Locating Rydberg Decay Error in SWAP-Leakage Reduction Circuit Protocol

Cheng-Cheng Yu, Yu-Hao Deng, Ming-Cheng Chen +2 more·Mar 3, 2025

Qubit leakage and loss, particularly Rydberg-induced decay during two-qubit gates, pose significant challenges to fault-tolerant quantum computing with neutral atom arrays, as they propagate to correlated errors and degrade code distance. Here, we pr...

Quantum Physics

Negative exchange interaction in Si quantum dot arrays via valley-phase induced $\mathbb{Z}_2$ gauge field

Benjamin D. Woods·Mar 3, 2025

The exchange interaction $J$ offers a powerful tool for quantum computation based on semiconductor spin qubits. However, the exchange interaction in two-electron systems in the absence of a magnetic field is usually constrained to be non-negative $J ...

Physics

The Post-Quantum Cryptography Transition: Making Progress, But Still a Long Road Ahead

Brian A. LaMacchia, Matthew J. Campagna, William Gropp·Mar 3, 2025

The development of quantum computing threatens the security of our currently widely deployed cryptographic algorithms. While signicant progress has been made in developing post-quantum cryptography (PQC) standards to protect against future quantum co...

Computer Science

The carbon nanotube gatemon qubit

H. Riechert, S. Annabi, A. Peugeot +8 more·Mar 3, 2025

Gate-tunable transmon qubits are based on quantum conductors used as weak links within hybrid Josephson junctions. These gatemons have been implemented in just a handful of systems, all relying on extended conductors, namely epitaxial semiconductors ...

PhysicsMedicine

Fast Expectation Value Calculation Speedup of Quantum Approximate Optimization Algorithm: HoLCUs QAOA

Alejandro Mata Ali·Mar 3, 2025

In this paper, we present a new method for calculating expectation values of operators that can be expressed as a linear combination of unitary (LCU) operators. This method allows to perform this calculation in a single quantum circuit measuring a si...

Computer SciencePhysics

Renormalization and Low-Energy Effective Models in Cavity and Circuit QED

Daniele Lamberto, A. Mercurio, O. D. Stefano +2 more·Mar 3, 2025

The quantum Rabi model (QRM) is a cornerstone in the study of light-matter interactions within cavity and circuit quantum electrodynamics (QED). It effectively captures the dynamics of a two-level system coupled to a single-mode resonator, serving as...

Physics

On Exact Sizes of Minimal CNOT Circuits

Jens Christensen, Søren Fuglede Jørgensen, Andreas Pavlogiannis +1 more·Mar 3, 2025

Computing a minimum-size circuit that implements a certain function is a standard optimization task. We consider circuits of CNOT gates, which are fundamental binary gates in reversible and quantum computing. Algebraically, CNOT circuits on $n$ qubit...

PhysicsComputer Science

A thermal-noise-resilient microwave quantum network up to 4 K

Jiawei Qiu, Zihao Zhang, Zilin Wang +9 more·Mar 3, 2025

Quantum communication at microwave frequencies has been fundamentally constrained by the susceptibility of microwave photons to thermal noise, hindering their application in scalable quantum networks. Here we demonstrate a thermal-noise-resilient mic...

Physics

QCS-ADME: Quantum Circuit Search for Drug Property Prediction with Imbalanced Data and Regression Adaptation

Kangyu Zheng, Tianfan Fu, Zhiding Liang·Mar 2, 2025

The biomedical field is beginning to explore the use of quantum machine learning (QML) for tasks traditionally handled by classical machine learning, especially in predicting ADME (absorption, distribution, metabolism, and excretion) properties, whic...

Quantum PhysicsAIcs.LG

Scalable Memory Recycling for Large Quantum Programs

Israel Reichental, Ravid Alon, Lior Preminger +2 more·Mar 2, 2025

As quantum computing technology advances, the complexity of quantum algorithms increases, necessitating a shift from low-level circuit descriptions to high-level programming paradigms. This paper addresses the challenges of developing a compilation a...

Computer SciencePhysics

Intuit: Explain Quantum Computing Concepts via AR-based Analogy

Manusha Karunathilaka, Shaolun Ruan, Linping Yuan +5 more·Mar 2, 2025

Quantum computing has shown great potential to revolutionize traditional computing and can provide an exponential speedup for a wide range of possible applications, attracting various stakeholders. However, understanding fundamental quantum computing...

Computer Science

Optimizing Low-Energy Carbon IIoT Systems With Quantum Algorithms: Performance Evaluation and Noise Robustness

Kshitij Dave, Nouhaila Innan, B. K. Behera +3 more·Mar 2, 2025

Low-energy carbon Internet of Things (IoT) systems are essential for sustainable development, as they reduce carbon emissions while ensuring efficient device performance. Although classical algorithms manage energy efficiency and data processing with...

PhysicsComputer Science

Characterizing dynamical behaviors in topological open systems with boundary dissipations

Zhen-Yu Zheng, Xueliang Wang, Shu Chen·Mar 1, 2025

We investigate the dynamics of the Su-Schrieffer-Heeger model with boundary dissipations described by Lindblad master equations and unravel distinct dynamical features in the topologically different phases of the underlying Hamiltonian. By examining ...

Quantum Physicscond-mat.other

Qubit Movement-Optimized Program Generation on Zoned Neutral Atom Processors

Enhyeok Jang, Youngmin Kim, Hyungseok Kim +3 more·Mar 1, 2025

A zoned neutral atom architecture achieves exceptional fidelity by segregating the execution spaces of 1- and 2-qubit gates, being a promising candidate for high-accuracy quantum systems. Unfortunately, na'ively applying programs designed for static ...

Computer SciencePhysics

Collective neutrino oscillations in three flavors on qubit and qutrit processors

Luca Spagnoli, Noah Goss, A. Roggero +9 more·Mar 1, 2025

Collective neutrino flavor oscillations are of primary importance in understanding the dynamic evolution of core-collapse supernovae and subsequent terrestrial detection, but also among the most challenging aspects of numerical simulations. This situ...

Physics

Choco-Q: Commute Hamiltonian-based QAOA for Constrained Binary Optimization

Debin Xiang, Qifan Jiang, Liqiang Lu +2 more·Mar 1, 2025

Constrained binary optimization aims to find an optimal assignment to minimize or maximize the objective meanwhile satisfying the constraints, which is a representative NP problem in various domains, including transportation, scheduling, and economy....

Computer SciencePhysics
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