Quantum Brain

Papers

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

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14,833 papers in 12 months (-23% vs prior quarter)

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30,392 papers found

Learning Robust Observable to Address Noise in Quantum Machine Learning

Bikram Khanal, Pablo Rivas·Sep 11, 2024

Quantum Machine Learning (QML) has emerged as a promising field that combines the power of quantum computing with the principles of machine learning. One of the significant challenges in QML is dealing with noise in quantum systems, especially in the...

PhysicsComputer Science

A High-Performance List Decoding Algorithm for Surface Codes with Erroneous Syndrome

Jifan Liang, Qianfan Wang, Lvzhou Li +1 more·Sep 11, 2024

Quantum error-correcting codes (QECCs) are necessary for fault-tolerant quantum computation. Surface codes are a class of topological QECCs that have attracted significant attention due to their exceptional error-correcting capabilities and easy impl...

Computer ScienceMathematicsPhysics

A Comprehensive Cross-Model Framework for Benchmarking the Performance of Quantum Hamiltonian Simulations

Avimita Chatterjee, Sonny Rappaport, Anish Giri +5 more·Sep 11, 2024

Quantum Hamiltonian simulation is one of the most promising applications of quantum computing and forms the basis for many quantum algorithms. Benchmarking them is an important gauge of progress in quantum computing technology. We present a methodolo...

Physics

Detect anomalous quartic gauge couplings at muon colliders with quantum kernel k-means

Shuai Zhang, Kebin Chen, Ji-Chong Yang·Sep 11, 2024

In recent years, with the increasing luminosities of colliders, handling the growing amount of data has become a major challenge for future New Physics (NP) phenomenological research. In order to improve efficiency, machine learning algorithms have b...

Physics

In Situ Tunable Interaction with an Invertible Sign between a Fluxonium and a Post Cavity

Desislava Atanasova, Ian Yang, Teresa Honigl-Decrinis +3 more·Sep 11, 2024

Quantum computation with bosonic modes presents a powerful paradigm for harnessing the principles of quantum mechanics to perform complex information processing tasks. In constructing a bosonic qubit with superconducting circuits, nonlinearity is typ...

Physics

A compact QUBO encoding of computational logic formulae demonstrated on cryptography constructions

Gregory Morse, Tamás Kozsik, Oskar Mencer +1 more·Sep 10, 2024

We aim to advance the state-of-the-art in Quadratic Unconstrained Binary Optimization formulation with a focus on cryptography algorithms. As the minimal QUBO encoding of the linear constraints of optimization problems emerges as the solution of inte...

CryptographyMathematical PhysicsQuantum Physics

Tailoring the light-matter interaction for high-fidelity holonomic gate operations in multiple systems

Zhihuang Kang, Shutong Wu, Kunji Han +4 more·Sep 10, 2024

Realization of quantum computing requires the development of high-fidelity quantum gates that are resilient to decoherence, control errors, and environmental noise. While non-adiabatic holonomic quantum computation (NHQC) offers a promising approach,...

Physics

Quantum-State Texture and Gate Identification.

F. Parisio·Sep 10, 2024

We introduce and explore the notion of texture of an arbitrary quantum state, in a selected basis. In the first part of this Letter we develop a resource theory and show that state texture is adequately described by an easily computable monotone, whi...

MedicinePhysics

Alternative Bell's states and teleportation

J. M. Romero, Emiliano Montoya-Gonzalez, Oscar Velazquez-Alvarado·Sep 10, 2024

Bell's states are among the most useful in quantum computing. These state are an orthonormal base of entagled states with two qubits. We propose alternative bases of entangled states. Some of these states depend on a continuous parameter. We present ...

Physics

Deterministic generation of two-dimensional multi-photon cluster states

James O’Sullivan, K. Reuer, Aleksandr Grigorev +11 more·Sep 10, 2024

Multidimensional cluster states are a key resource for robust quantum communication, measurement-based quantum computing and quantum metrology. Here, we present a device capable of emitting large-scale entangled microwave photonic states in a two dim...

PhysicsMedicine

Quantum Electrodynamics Coupled-Cluster Theory: Exploring Photon-Induced Electron Correlations

Himadri Pathak, Nicholas P. Bauman, Ajay Panyala +1 more·Sep 10, 2024

We present our successful implementation of the quantum electrodynamics coupled-cluster method with single and double excitations (QED-CCSD) for electronic and bosonic amplitudes, covering both individual and mixed excitation processes within the Exa...

Physics

Towards few-body QCD on a quantum computer

J. Gálvez-Viruet·Sep 10, 2024

Quantum computers are promising tools for the simulation of many-body systems, and among those, QCD stands out by its rich phenomenology. Every simulation starts with a codification, and here we succently review a newly developed compact encoding bas...

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

An Integrated Deep-Cryogenic Temperature Sensor in CMOS Technology for Quantum Computing Applications

F. Olivieri, G. M. Noah, T. Swift +3 more·Sep 10, 2024

On-chip thermometry at deep-cryogenic temperatures is vital in quantum computing applications to accurately quantify the effect of increased temperature on qubit performance. In this work, we present a sub-1 K temperature sensor in CMOS technology ba...

Physics

Optical Gottesman-Kitaev-Preskill qubit generation via approximate squeezed coherent state superposition breeding

Andrew J. Pizzimenti, Daniel Soh·Sep 10, 2024

Gottesman-Kitaev-Preskill (GKP) qubits, known for their exceptional error-correction capabilities, are highly coveted in quantum computing. However, generating optical GKP qubits has been a significant challenge. Measurement-based methods, where a po...

Physics

Concomitant Entanglement and Control Criticality Driven by Collective Measurements

T. Iadecola, Justin H. Wilson, J. H. Pixley·Sep 10, 2024

Adaptive quantum circuits—where a quantum many-body state is controlled using measurements and conditional unitary operations—are a powerful paradigm for state preparation and quantum error-correction tasks. They can support two types of nonequilibri...

Physics

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

An Empirical Analysis on the Effectiveness of the Variational Quantum Linear Solver

G. Turati, Alessia Marruzzo, Maurizio Ferrari Dacrema +1 more·Sep 10, 2024

Variational Quantum Algorithms (VQAs) have emerged as promising methods for tackling complex problems on near-term quantum devices. Among these algorithms, the Variational Quantum Linear Solver (VQLS) addresses linear systems of the form $Ax=b$, aimi...

Physics

Measuring temporal entropies in experiments

Aleix Bou-Comas, Carlos Ramos Marimón, Jan T. Schneider +2 more·Sep 9, 2024

We propose a novel experimental protocol to measure generalized temporal entropies in many-body quantum systems. Our approach involves using local operators as probes to characterize the out-of-equilibrium dynamics induced by a geometric double quenc...

Quantum Physicscond-mat.quant-gascond-mat.stat-mechhep-th

Hardware-Efficient Fault Tolerant Quantum Computing with Bosonic Grid States in Superconducting Circuits

M. Lemonde, D. Lachance-Quirion, Guillaume Duclos-Cianci +5 more·Sep 9, 2024

Quantum computing holds the promise of solving classically intractable problems. Enabling this requires scalable and hardware-efficient quantum processors with vanishing error rates. This perspective manuscript describes how bosonic codes, particular...

Physics
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