Quantum Brain

Papers

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

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28,807

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13,828 papers in 12 months (-12% vs prior quarter)

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28,807 papers found

Codesigned counterdiabatic quantum optimization on a photonic quantum processor

Xiao-Wen Shang, Xuan Chen, N. N. Hegade +6 more·Sep 26, 2024

Codesign, an integral part of computer architecture referring to the information interaction in hardware-software stack, is able to boost the algorithm mapping and execution in the computer hardware. This well applies to the noisy intermediate-scale ...

Physics

QUBO Modeling for a Spectrum of Domination Problems

Haoqian Pan, Changhong Lu·Sep 26, 2024

As quantum computing advances, the application of quantum algorithms to address combinatorial optimization problems on quantum computers has emerged as a pivotal area of research. The quadratic unconstrained binary optimization (QUBO) acts as an inte...

Computer SciencePhysics

Boltzmann Sampling by Diabatic Quantum Annealing

Ju-Yeon Gyhm, Gilhan Kim, Hyukjoon Kwon +1 more·Sep 26, 2024

Boltzmann sampling plays a key role in numerous algorithms, including those in machine learning. While quantum annealers have been explored as fast Boltzmann samplers, their reliance on environmental noise limits control over the effective temperatur...

Physics

Code Generation and Algorithmic Problem Solving Using Llama 3.1 405B

Aniket Deroy, Subhankar Maity·Sep 26, 2024

Code generation by Llama 3.1 models, such as Meta's Llama 3.1 405B, represents a significant advancement in the field of artificial intelligence, particularly in natural language processing and programming automation. This paper explores the capabili...

Computer Science

Fault-tolerant logical Clifford gates from code automorphisms

Hasan Sayginel, Stergios Koutsioumpas, Mark A. Webster +2 more·Sep 26, 2024

We study the implementation of fault-tolerant logical Clifford gates on stabilizer quantum error correcting codes based on their symmetries. Our approach is to map the stabilizer code to a binary linear code, compute its automorphism group, and impos...

Physics

Digital simulation of zero-temperature spontaneous symmetry breaking in a superconducting lattice processor

Chang-Kang Hu, Guixu Xie, Kasper Poulsen +11 more·Sep 26, 2024

Quantum simulators are ideal platforms to investigate quantum phenomena that are inaccessible through conventional means, such as the limited resources of classical computers to address large quantum systems or due to constraints imposed by fundament...

PhysicsMedicine

Exploring LLM-Driven Explanations for Quantum Algorithms

Giordano d'Aloisio, Sophie Fortz, Carol Hanna +4 more·Sep 26, 2024

Background: Quantum computing is a rapidly growing new programming paradigm that brings significant changes to the design and implementation of algorithms. Understanding quantum algorithms requires knowledge of physics and mathematics, which can be c...

Computer SciencePhysics

Andreev qubit readout from dynamic interference supercurrent

Xian-Peng Zhang, Chuanchang Zeng, Zhen-Biao Yang +2 more·Sep 25, 2024

Nondemolition protocols use ancilla qubits to identify the fragile quantum state of a qubit without destroying its encoded information, thus playing a crucial role in nondestructive quantum measurements particularly relevant for quantum error correct...

cond-mat.supr-conQuantum Physics

Fast unconditional reset and leakage reduction in fixed-frequency transmon qubits

Liangyu Chen, Simon Pettersson Fors, Zixian Yan +24 more·Sep 25, 2024

The realization of fault-tolerant quantum computing requires the execution of quantum error-correction (QEC) schemes, to mitigate the fragile nature of qubits. In this context, to ensure the success of QEC, a protocol capable of implementing both qub...

Physics

Quantum error correction-inspired multiparameter quantum metrology

Sivaprasad Omanakuttan, J. Gross, T. J. Volkoff·Sep 25, 2024

We present a novel strategy for obtaining optimal probe states and measurement schemes in a class of noiseless multiparameter estimation problems with symmetry among the generators. The key to the framework is the introduction of a set of quantum met...

PhysicsMathematics

Visualizing dynamics of charges and strings in (2 + 1)D lattice gauge theories

T. Cochran, B. Jobst, Eliot Rosenberg +189 more·Sep 25, 2024

Lattice gauge theories (LGTs)1, 2, 3–4 can be used to understand a wide range of phenomena, from elementary particle scattering in high-energy physics to effective descriptions of many-body interactions in materials5, 6–7. Studying dynamical properti...

PhysicsMedicine

Non-stabilizerness Entanglement Entropy: a measure of hardness in the classical simulation of quantum many-body systems

Jiale Huang, Xiangjian Qian, Mingpu Qin·Sep 25, 2024

Classical and quantum states can be distinguished by entanglement entropy, which can be viewed as a measure of quantum resources. Entanglement entropy also plays a pivotal role in understanding computational complexity in simulating quantum systems. ...

Physics

Scalable quantum eraser with superconducting integrated circuits

C. M. Diniz, C. Villas-Bôas, Alan C. Santos·Sep 25, 2024

A fast and scalable scheme for multi-qubit resetting in superconducting quantum processors is proposed by exploiting the feasibility of frequency-tunable transmon qubits and transmon-like couplers to engineer a full programmable superconducting erasi...

Physics

Heralded optical entanglement distribution via lossy quantum channels: a comparative study.

Wan Zo, Seungbeom Chin, Yong-Su Kim·Sep 25, 2024

Quantum entanglement serves as a foundational resource for various quantum technologies. In optical systems, entanglement distribution relies on the indistinguishability and spatial overlap of photons. Heralded schemes play a crucial role in ensuring...

PhysicsMedicine

Generic and scalable differential-equation solver for quantum scientific computing

Jinhwan Sul, Yan Wang·Sep 24, 2024

One of the most important topics in quantum scientific computing is solving differential equations. In this paper, generalized quantum functional expansion (QFE) framework is proposed. In the QFE framework, a functional expansion of solution is encod...

PhysicsMathematics

Erasure Decoding for Quantum LDPC Codes via Belief Propagation with Guided Decimation

Mert Gökduman, Hanwen Yao, Henry D. Pfister·Sep 24, 2024

Quantum low-density parity-check (LDPC) codes are a promising family of quantum error-correcting codes for fault tolerant quantum computing with low overhead. Decoding quantum LDPC codes on quantum erasure channels has received more attention recentl...

Computer ScienceMathematicsPhysics

Deep Circuit Compression for Quantum Dynamics via Tensor Networks

J. Gibbs, Lukasz Cincio·Sep 24, 2024

Dynamic quantum simulation is a leading application for achieving quantum advantage. However, high circuit depths remain a limiting factor on near-term quantum hardware. We present a compilation algorithm based on Matrix Product Operators for generat...

PhysicsComputer Science

Preparing ground and excited states using adiabatic CoVaR

Wooseop Hwang, Bálint Koczor·Sep 24, 2024

CoVariance Root finding with classical shadows (CoVaR) was recently introduced as a new paradigm for training variational quantum circuits. Common approaches, such as variants of the variational quantum eigensolver, aim to optimise a non-linear class...

Physics

Quantum DeepONet: Neural operators accelerated by quantum computing

Peng Xiao, Muqing Zheng, Anran Jiao +2 more·Sep 24, 2024

In the realm of computational science and engineering, constructing models that reflect real-world phenomena requires solving partial differential equations (PDEs) with different conditions. Recent advancements in neural operators, such as deep opera...

PhysicsComputer Science

Optical multi-beam steering and communication using integrated acousto-optics arrays

Qixuan Lin, Shucheng Fang, Yue Yu +4 more·Sep 24, 2024

Optical beam steering enables optical sensing, imaging, and long-range communication over free space. Despite the inherent speed of light, advanced applications increasingly require simultaneous steering of multiple, independently controlled beams, t...

PhysicsMedicine
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