Quantum Brain

Papers

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

Total Papers

27,548

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1,041

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Research Volume

12,894 papers in 12 months (-5% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

2,459 papers found

Resource-efficient quantum algorithm for linear systems of equations

Francesco Ghisoni, Francesco Scala, Daniele Bajoni +1 more·Sep 13, 2024

Finding the solution to linear systems is at the heart of many applications in science and technology. Over the years a number of algorithms have been proposed to solve this problem on a digital quantum device, yet most of these are too demanding to ...

Quantum Physics

Variational LOCC-Assisted Quantum Circuits for Long-Range Entangled States.

Yuxuan Yan, Muzhou Ma, You Zhou +1 more·Sep 11, 2024

Long-range entanglement is an important quantum resource, particularly for topological orders and quantum error correction. In reality, preparing long-range entangled states requires a deep unitary circuit, which poses significant experimental challe...

MedicinePhysics

Quantum-Train with Tensor Network Mapping Model and Distributed Circuit Ansatz

Chen-Yu Liu, Chu-Hsuan Abraham Lin, Kuan-Cheng Chen·Sep 11, 2024

In the Quantum-Train (QT) framework, mapping quantum state measurements to classical neural network weights is a critical challenge that affects the scalability and efficiency of hybrid quantum-classical models. The traditional QT framework employs a...

PhysicsComputer Science

Developing a Framework for Sonifying Variational Quantum Algorithms: Implications for Music Composition

P. Itaboraí, Peter Thomas, Arianna Crippa +3 more·Sep 11, 2024

This chapter examines the Variational Quantum Harmonizer, a software tool and musical interface that focuses on the problem of sonification of the minimization steps of Variational Quantum Algorithms (VQA), used for simulating properties of quantum s...

Computer ScienceEngineeringPhysics

Simulating continuous-space systems with quantum-classical wave functions

Friederike Metz, Gabriel Pescia, Giuseppe Carleo·Sep 10, 2024

Most non-relativistic interacting quantum many-body systems, such as atomic and molecular ensembles or materials, are naturally described in terms of continuous-space Hamiltonians. The simulation of their ground-state properties on digital quantum co...

Physics

Cahier de l'Institut Pascal: Noisy Quantum Dynamics and Measurement-Induced Phase Transitions

Alexios Christopoulos, Alessandro Santini, G. Giachetti·Sep 10, 2024

This is a conference proceeding in the framework of workshop"OpenQMBP2023"at Institute Pascal (Orsay, France) and associated to the lecture given by Prof. Ehud Altman. We provide a comprehensive analysis of recent results in the context of measuremen...

Physics

End-to-End Quantum Simulation of a Chemical System

W. V. Dam, Hongbin Liu, Guang Hao Low +6 more·Sep 9, 2024

We demonstrate the first end-to-end integration of high-performance computing (HPC), reliable quantum computing, and AI in a case study on catalytic reactions producing chiral molecules. We present a hybrid computation workflow to determine the stron...

Physics

Quantum annealing applications, challenges and limitations for optimisation problems compared to classical solvers

Finley Alexander Quinton, P. S. Myhr, Mostafa Barani +2 more·Sep 9, 2024

Quantum computing is rapidly advancing, harnessing the power of qubits’ superposition and entanglement for computational advantages over classical systems. However, scalability poses a primary challenge for these machines. By implementing a hybrid wo...

PhysicsMedicine

Experimental Quantum Simulation of Chemical Dynamics.

T. Navickas, R. MacDonell, C. Valahu +10 more·Sep 6, 2024

Accurate simulation of dynamic processes in molecules and reactions is among the most challenging problems in quantum chemistry. Quantum computers promise efficient chemical simulation, but the existing quantum algorithms require many logical qubits ...

MedicinePhysics

On-chip high-dimensional entangled photon sources

Tavshabad Kaur, Daniel Peace, Jacquiline Romero·Sep 5, 2024

High-dimensional quantum entanglement is an important resource for emerging quantum technologies such as quantum communication and quantum computation. The scalability of metres-long experimental setups limits high-dimensional entanglement in bulk op...

Physics

Enhancing the performance of variational quantum classifiers with hybrid autoencoders

Georgios Maragkopoulos, Aikaterini Mandilara, Antonia Tsili +1 more·Sep 5, 2024

Variational quantum circuits (VQC) lie at the forefront of quantum machine learning research. Still, the use of quantum networks for real data processing remains challenging as the number of available qubits cannot accommodate a large dimensionality ...

Computer SciencePhysics

Hybrid Oscillator-Qubit Quantum Processors: Simulating Fermions, Bosons, and Gauge Fields

Eleanor Crane, Kevin C. Smith, T. Tomesh +9 more·Sep 5, 2024

We develop a hybrid oscillator-qubit processor framework for quantum simulation of strongly correlated fermions and bosons that avoids the boson-to-qubit mapping overhead encountered in qubit hardware. This framework gives exact decompositions of par...

Physics

GALIC: hybrid multi-qubitwise pauli grouping for quantum computing measurement

Matthew X. Burns, Chenxu Liu, S. Stein +3 more·Sep 1, 2024

Observable estimation is a core primitive in NISQ-era algorithms targeting quantum chemistry applications. To reduce the state preparation overhead required for accurate estimation, recent works have proposed various simultaneous measurement schemes ...

Physics

Resource state generation for a multispin register in a hybrid matter-photon quantum information processor

Yu Liu, Martin B. Plenio·Aug 30, 2024

Hybrid quantum architectures that integrate matter and photonic degrees of freedom present a promising pathway toward scalable, fault-tolerant quantum computing. This approach needs to combine well-established entangling operations between distant re...

Quantum Physics

Evaluation of Quantum Annealing-based algorithms for flexible job shop scheduling

Philipp Schworm, Xiangqian Wu, Matthias Klar +1 more·Aug 28, 2024

A flexible job shop scheduling problem (FJSSP) poses a complex optimization task in modeling real-world process scheduling tasks with conflicting objectives. To tackle FJSSPs, approximation methods are employed to ensure solutions are within acceptab...

Physics

Single-shot latched readout of a quantum dot qubit using barrier gate pulsing

Sanghyeok Park, Jared Benson, J. Corrigan +4 more·Aug 27, 2024

Latching techniques are widely used to enhance readout of qubits. These methods require precise tuning of multiple tunnel rates, which can be challenging to achieve under realistic experimental conditions, such as when a qubit is coupled to a single ...

Mesoscale PhysicsQuantum Physics

Toward Mixed Analog-Digital Quantum Signal Processing: Quantum AD/DA Conversion and the Fourier Transform

Yuan Liu, John M. Martyn, Jasmine Sinanan-Singh +3 more·Aug 27, 2024

Signal processing stands as a pillar of classical computation and modern information technology, applicable to both analog and digital signals. Recently, advancements in quantum information science have suggested that quantum signal processing (QSP) ...

Computer ScienceEngineeringPhysics

Modified recursive QAOA for exact MAX-CUT solutions on bipartite graphs: closing the gap beyond QAOA limit

Eunok Bae, Hyukjoon Kwon, V. Vijendran +1 more·Aug 23, 2024

Quantum approximate optimization algorithm (QAOA) is a quantum–classical hybrid algorithm proposed with the goal of approximately solving combinatorial optimization problems such as the MAX-CUT problem. It has been considered a potential candidate fo...

Physics

Quantum calculation for two-stream instability and advection test of Vlasov–Maxwell equations: numerical evaluation of Hamiltonian simulation

Hayato Higuchi, J. Pedersen, Kiichiro Toyoizumi +3 more·Aug 21, 2024

The Vlasov–Maxwell equations provide kinetic simulations of collisionless plasmas, but numerically solving them on classical computers is often impractical. This is due to the computational resource constraints imposed by the time evolution in the si...

Physics

Calculating the Energy Profile of an Enzymatic Reaction on a Quantum Computer.

Patrick Ettenhuber, Mads Bøttger Hansen, Irfansha Shaik +7 more·Aug 20, 2024

Quantum computing (QC) provides a promising avenue for enabling quantum chemistry calculations, which are classically impossible due to computational complexity that increases exponentially with system size. As fully fault-tolerant algorithms and har...

MedicinePhysics
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