Quantum Brain

Papers

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

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28,582

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13,646 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 Fisher-Yates shuffle: Unifying methods for generating uniform superpositions of permutations

Lennart Binkowski, Marvin Schwiering·Apr 24, 2025

Uniform superpositions over permutations play a central role in quantum error correction, cryptography, and combinatorial optimisation. We introduce a simple yet powerful quantisation of the classical Fisher-Yates shuffle, yielding a suite of efficie...

Physics

Near-Term Pseudorandom and Pseudoresource Quantum States

Andrew Tanggara, Mile Gu, Kishor Bharti·Apr 24, 2025

A pseudorandom quantum state (PRS) is an ensemble of quantum states indistinguishable from Haar-random states to observers with efficient quantum computers. It allows one to substitute the costly Haar-random state with efficiently preparable PRS as a...

Computer SciencePhysics

Crypto-ncRNA: a bio-inspired post-quantum cryptographic primitive exploiting RNA folding complexity

Xu Wang, Yiquan Wang, Tin-Yeh Huang +2 more·Apr 24, 2025

The imminent realization of fault-tolerant quantum computing precipitates a systemic collapse of classical public-key infrastructure and necessitates an urgent transition to post-quantum cryptography. However, current standardization efforts predomin...

Computer Science

Computing‐Heightened Low‐Cost High‐Dimensional Controlled‐SUM Gates

Zhi‐Guo Fan, Zhuo‐Ya Bai, Qiu‐lin Tan +1 more·Apr 24, 2025

Qudit‐based quantum gates offer several advantages over qubit‐based counterparts, such as higher information density, the ability to address more complex problems, and richer quantum operations. In this study, three realistic protocols are presented ...

Physics

Selectively Blind Quantum Computation

Abbas Poshtvan, Oleksandra Lapiha, Mina Doosti +3 more·Apr 24, 2025

Known protocols for secure delegation of quantum computations from a client to a server in an information theoretic setting require quantum communication. In this work, we investigate methods to reduce communication overhead. First, we establish an i...

Physics

EAQGA: A Quantum-Enhanced Genetic Algorithm with Novel Entanglement-Aware Crossovers

Mohammad Kashfi Haghighi, Matthieu Fortin-Deschênes, Christophe Pere +1 more·Apr 24, 2025

Genetic algorithms are highly effective optimization techniques for many computationally challenging problems, including combinatorial optimization tasks like portfolio optimization. Quantum computing has also shown potential in addressing these comp...

Computer Science

Quantum coherence and counterdiabatic quantum computing

Josue R Huerta-Ruiz, Maximiliano Araya-Gaete, Diego Tancara +3 more·Apr 24, 2025

Counterdiabatic driving (CD) emerges as a valuable technique for implementing shortcuts to adiabaticity protocols, enhancing quantum technology applications. In this context, counterdiabatic quantum computing (CQC) represents a new paradigm with the ...

Physics

Stamps of state on structure: Probing the state of ultralight dark matter via its density fluctuations

Saarik Kalia·Apr 23, 2025

Dark matter (DM) candidates with very small masses, and correspondingly large number densities, have gained significant interest in recent years. These DM candidates are typically said to behave "classically". More specifically, they are often assume...

hep-phastro-ph.COQuantum Physics

Quantum walk search for exceptional configurations on one- and two-dimensional lattice with extra long-range edges of Hanoi network of degree four

Satoshi Watanabe, Pulak Ranjan Giri·Apr 23, 2025

There exist several types of configurations of marked vertices, referred to as the exceptional configurations, on one- and two-dimensional periodic lattices with additional long-range edges of the Hanoi network of degree four (HN4), which are challen...

Quantum Physics

Optically detected and radio wave-controlled spin chemistry in flavoproteins

Kun Meng, Linyan Nie, Johannes Berger +7 more·Apr 23, 2025

Optically addressable spin systems, such as nitrogen-vacancy centers in diamond, have been widely studied for quantum sensing applications. In this work, we demonstrate that certain flavoproteins, specifically cryptochrome and iLOV, which generate sp...

Quantum Physics

Experimental Certification of Quantum Measurements with Maximally Mixed States

Jia-He Liang, Ze-Yan Hao, Jia-Kun Li +6 more·Apr 23, 2025

So far, certifying quantum devices from their input-output statistics, under minimal assumptions, required the preparation of specific pure quantum states. Recently, Xu et al. [Phys. Rev. Lett. 132, 140201 (2024)] have demonstrated that certain sets ...

Quantum Physics

Public-Key Quantum Fire and Key-Fire From Classical Oracles

Alper Çakan, Vipul Goyal, Omri Shmueli·Apr 23, 2025

Quantum fire is a distribution of quantum states that can be efficiently cloned, but cannot be efficiently converted into a classical string. First considered by Nehoran and Zhandry (ITCS'24) and later formalized by Bostanci, Nehoran, Zhandry (STOC'2...

Quantum PhysicsCryptography

HAQA: A Hardware-Guided and Fidelity-Aware Strategy for Efficient Qubit Mapping Optimization

Wenjie Sun, Xiaoyu Li, Lianhui Yu +4 more·Apr 23, 2025

Quantum algorithms rely on quantum computers for implementation, but the physical connectivity constraints of modern quantum processors impede the efficient realization of quantum algorithms. Qubit mapping, a critical technology for practical quantum...

Computer SciencePhysics

Construction of Boolean Logic Gates Using QFT-Based Adder Architecture

Ayda Kaltehei, Murat Kurt, Azmi Genccten +1 more·Apr 23, 2025

In this study, we construct the quantum reversible counterparts of the logical AND, OR, XOR, NOR, and NAND gates. We utilize a quantum Fourier transform (QFT)-based adder circuit that replicates the functionality of a digital half-adder, which comput...

Physics

Beating the break-even point with autonomous quantum error correction

Yi Li, Qingyuan Mei, Qing-Xuan Jie +13 more·Apr 23, 2025

Quantum error correction (QEC) is essential for practical quantum computing, as it protects fragile quantum information from errors by encoding it in high-dimensional Hilbert spaces. Conventional QEC protocols typically require repeated syndrome meas...

Physics

More on genuine multientropy and holography

Norihiro Iizuka, Simon Lin, Mitsuhiro Nishida·Apr 23, 2025

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Physics

OneAdapt: Adaptive Compilation for Resource-Constrained Photonic One-Way Quantum Computing

Hezi Zhang, Jixuan Ruan, D. Tullsen +3 more·Apr 23, 2025

Measurement-based quantum computing (MBQC), a.k.a. one-way quantum computing (1WQC), is a universal quantum computing model, which is particularly well-suited for photonic platforms. In this model, computation is driven by measurements on an entangle...

PhysicsComputer Science

Preconditioning Natural and Second Order Gradient Descent in Quantum Optimization: A Performance Benchmark

Th'eo Lisart-Liebermann, Arcesio Castaneda Medina·Apr 23, 2025

The optimization of parametric quantum circuits is technically hindered by three major obstacles: the non-convex nature of the objective function, noisy gradient evaluations, and the presence of barren plateaus. As a result, the selection of classica...

Computer SciencePhysics

Quantum algorithm for reducing amplitudes in order to search and filter data

K. Zakharova, Artem Chernikov, Sergey Sysoev·Apr 23, 2025

The method is introduced for fast data processing by reducing the probability amplitudes of undesirable elements. The algorithm has a mathematical description and circuit implementation on a quantum processor. The idea is to make a quick decision (do...

Physics

Learning to decode logical circuits

Yiqing Zhou, Chao Wan, Yichen Xu +3 more·Apr 23, 2025

As quantum hardware advances toward enabling error-corrected quantum circuits in the near future, the absence of an efficient polynomial-time decoding algorithm for logical circuits presents a critical bottleneck. While quantum memory decoding has be...

MedicinePhysicsComputer Science
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