Quantum Brain

Papers

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

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28,891

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551

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13,849 papers in 12 months (-10% vs prior quarter)

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28,891 papers found

Hybrid Quantum Tabu Search for Solving the Vehicle Routing Problem

James Holliday, Braeden Morgan, Hugh Churchill +1 more·Apr 19, 2024

There has never been a more exciting time for the future of quantum computing than now. Real-world quantum computing usage is now the next XPRIZE. With that challenge in mind we have explored a new approach as a hybrid quantum-classical algorithm for...

Computer Science

TANQ-Sim: Tensorcore Accelerated Noisy Quantum System Simulation via QIR on Perlmutter HPC

Ang Li, Chenxu Liu, S. Stein +7 more·Apr 19, 2024

Although there have been remarkable advances in quantum computing (QC), it remains crucial to simulate quantum programs using classical large-scale parallel computing systems to validate quantum algorithms, comprehend the impact of noise, and develop...

Computer SciencePhysics

Qwerty: A Basis-Oriented Quantum Programming Language

Austin J. Adams, Sharjeel Khan, Jeffrey S. Young +1 more·Apr 19, 2024

Quantum computers have leaped from the theoretical realm into a race to large-scale implementations. This is due to the promise of revolutionary speedups, where achieving such speedup requires designing an algorithm that harnesses the structure of a ...

PhysicsComputer Science

Demonstration of quantum projective simulation on a single-photon-based quantum computer

Giacomo Franceschetto, Arno Ricou·Apr 19, 2024

Variational quantum algorithms show potential in effectively operating on noisy intermediate-scale quantum devices. A variational approach to reinforcement learning has been recently proposed, incorporating linear-optical interferometers and a classi...

Physics

The Localized Active Space Method with Unitary Selective Coupled Cluster.

Abhishek Mitra, Ruhee D'Cunha, Qiaohong Wang +5 more·Apr 19, 2024

We introduce a hybrid quantum-classical algorithm, the localized active space unitary selective coupled cluster singles and doubles (LAS-USCCSD) method. Derived from the localized active space unitary coupled cluster (LAS-UCCSD) method, LAS-USCCSD fi...

PhysicsMedicine

Multi-Class Quantum Convolutional Neural Networks

Marco Mordacci, Davide Ferrari, Michele Amoretti·Apr 19, 2024

Classification is particularly relevant to Information Retrieval, as it is used in various subtasks of the search pipeline. In this work, we propose a quantum convolutional neural network (QCNN) for multi-class classification of classical data. The m...

PhysicsComputer Science

Lattice Surgery for Dummies

Avimita Chatterjee, Subrata Das, Swaroop Ghosh·Apr 19, 2024

Quantum error correction (QEC) plays a crucial role in correcting noise and paving the way for fault-tolerant quantum computing. This field has seen significant advancements, with new quantum error correction codes emerging regularly to address error...

MedicinePhysics

High-rate quantum LDPC codes for long-range-connected neutral atom registers

Laura Pecorari, Sven Jandura, G. Brennen +1 more·Apr 19, 2024

High-rate quantum error correcting (QEC) codes with moderate overheads in qubit number and control complexity are highly desirable for achieving fault-tolerant quantum computing. Recently, quantum error correction has experienced significant progress...

PhysicsMedicine

Active robustness against the detuning-error for Rydberg quantum gates

Qing-Ling Hou, Han Wang, Jing Qian·Apr 18, 2024

Error suppression to the experimental imperfections is a central challenge for useful quantum computing. Recent studies have shown the advantages of using single-modulated pulses based on optimal control which can realize high-fidelity two-qubit gate...

Physics

Quantum trajectory entanglement in various unravelings of Markovian dynamics

T. Vovk, Hannes Pichler·Apr 18, 2024

The cost of classical simulations of quantum many-body dynamics is often determined by the amount of entanglement in the system. In this paper, we study entanglement in stochastic quantum trajectory approaches that solve master equations describing o...

Physics

Boolean Matching Reversible Circuits: Algorithm and Complexity

Tian-Fu Chen, Jie-Hong Roland Jiang·Apr 18, 2024

Boolean matching is an important problem in logic synthesis and verification. Despite being well-studied for conventional Boolean circuits, its treatment for reversible logic circuits remains largely, if not completely, missing. This work provides th...

PhysicsComputer Science

Scalable Spin Squeezing from Critical Slowing Down in Short-Range Interacting Systems.

T. Roscilde, Filippo Caleca, A. Angelone +1 more·Apr 18, 2024

Long-range spin-spin interactions are known to generate nonequilibrium dynamics that can squeeze the collective spin of a quantum spin ensemble in a scalable manner, leading to states whose metrologically useful entanglement grows with system size. H...

PhysicsMedicine

Fermionic quantum simulation on Andreev bound state superlattices

Peter D. Johannsen, C. Schrade·Apr 18, 2024

Arrays of superconducting qubits and cavities offer a promising route for realizing artificial materials. However, many analog simulations on superconducting circuit hardware have focused on bosonic systems. Fermionic simulations, in contrast, have l...

Physics

Tailoring Fault-Tolerance to Quantum Algorithms

Zhuangzhuang Chen, Narayanan Rengaswamy·Apr 18, 2024

The standard approach to universal fault-tolerant quantum computing is to develop a general purpose quantum error correction mechanism that can implement a universal set of logical gates fault-tolerantly. Given such a scheme, any quantum algorithm ca...

Computer SciencePhysicsMathematics

Quantum-inspired Techniques in Tensor Networks for Industrial Contexts

Alejandro Mata Ali, Iñigo Perez Delgado, Aitor Moreno Fdez. de Leceta·Apr 17, 2024

In this paper we present a study of the applicability and feasibility of quantum-inspired algorithms and techniques in tensor networks for industrial environments and contexts, with a compilation of the available literature and an analysis of the use...

Quantum PhysicsEmerging Techcs.LGphysics.comp-ph

Compression of Quantum Shallow-Circuit States.

Yuxiang Yang·Apr 17, 2024

Shallow quantum circuits feature not only computational advantages over their classical counterparts but also cutting-edge applications. Storing quantum information generated by shallow circuits is a fundamental question of both theoretical and pract...

PhysicsMedicine

Method for Efficient Large-Scale Cryogenic Characterization of CMOS Technologies

J. Eastoe, G. M. Noah, Debargha Dutta +3 more·Apr 17, 2024

Semiconductor integrated circuits operated at cryogenic temperature will play an essential role in quantum computing architectures. These can offer equivalent or superior performance to their room-temperature counterparts while enabling a scaling up ...

PhysicsComputer Science

Optimized measurement-free and fault-tolerant quantum error correction for neutral atoms

Stefano Veroni, Markus Müller, G. Giudice·Apr 17, 2024

A major challenge in performing quantum error correction (QEC) is implementing reliable measurements and conditional feed-forward operations. In quantum computing platforms supporting unconditional qubit resets, or a constant supply of fresh qubits, ...

Physics

Fault-tolerant quantum computing with the parity code and biased-noise qubits

A. Messinger, Valentin Torggler, Berend Klaver +2 more·Apr 17, 2024

We present a fault-tolerant universal quantum computing architecture based on a code concatenation of biased-noise qubits and the parity architecture. The parity architecture can be understood as a low-density parity-check code tailored specifically ...

Physics

Bayesian Parameterized Quantum Circuit Optimization (BPQCO): a task and hardware-dependent approach

Alexander Ben'itez-Buenache, Queralt Portell-Montserrat·Apr 17, 2024

Variational quantum algorithms (VQAs) have emerged as a promising quantum alternative for solving optimization and machine learning problems using parameterized quantum circuits (PQCs). The design of these circuits influences the ability of the algor...

PhysicsComputer Science
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