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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13,885 papers in 12 months (-10% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

28,891 papers found

Enhancing quantum field theory simulations on NISQ devices with Hamiltonian truncation

J. Ingoldby, M. Spannowsky, Timur Sypchenko +1 more·Jul 26, 2024

Quantum computers can efficiently simulate highly entangled quantum systems, offering a solution to challenges facing classical simulation of quantum field theories (QFTs). This paper presents an alternative to traditional methods for simulating the ...

Physics

Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source

G. Rodari, Francesco Hoch, Alessia Suprano +6 more·Jul 26, 2024

A Bernoulli factory is a randomness manipulation routine that takes as input a Bernoulli random variable, outputting another Bernoulli variable whose bias is a function of the input bias. Recently proposed quantum-to-quantum Bernoulli factory schemes...

MedicinePhysics

Exploring quantum active learning for materials design and discovery.

M. P. Lourenço, Hadi Zadeh-Haghighi, Jiří Hostaš +4 more·Jul 26, 2024

The meeting of artificial intelligence (AI) and quantum computing is already a reality; quantum machine learning (QML) promises the design of better regression models. In this work, we extend our previous studies of materials discovery using classica...

PhysicsMedicine

Methods to achieve near-millisecond energy relaxation and dephasing times for a superconducting transmon qubit

Mikko Tuokkola, Y. Sunada, Heidi Kivijärvi +6 more·Jul 26, 2024

Superconducting qubits are one of the most promising physical systems for implementing quantum computers. However, executing quantum algorithms of practical computational advantage requires further improvements in the fidelities of qubit operations, ...

PhysicsMedicine

Stabilization of cat-state manifolds using nonlinear reservoir engineering

Ivan Rojkov, Matteo Simoni, Elias Zapusek +2 more·Jul 25, 2024

We introduce a novel reservoir engineering approach for stabilizing multi-component Schrödinger's cat manifolds. The fundamental principle of the method lies in the destructive interference at crossings of gain and loss Hamiltonian terms in the coupl...

Quantum Physics

Implementing multi-controlled X gates using the quantum Fourier transform

V. Arsoski·Jul 25, 2024

Quantum computing has the potential to solve many complex algorithms in the domains of optimization, arithmetics, structural search, financial risk analysis, machine learning, image processing, and others. Quantum circuits built to implement these al...

PhysicsComputer Science

ArtA: automating Design Space Exploration of spin-qubit architectures

Nikiforos Paraskevopoulos, David Hamel, Aritra Sarkar +2 more·Jul 25, 2024

In the fast-paced field of quantum computing, identifying the architectural characteristics that will enable quantum processors to achieve high performance across a diverse range of quantum algorithms continues to pose a significant challenge. Given ...

Computer SciencePhysics

The signaling dimension of two-dimensional and polytopic systems

Shuriku Kai, Michele Dall'Arno·Jul 25, 2024

The signaling dimension of any given physical system represents its classical simulation cost, that is, the minimum dimension of a classical system capable of reproducing all the input/output correlations of the given system. The signaling dimension ...

Computer SciencePhysics

Quantum-inspired evolutionary algorithms for feature subset selection: a comprehensive survey

Yelleti Vivek, V. Ravi, P. R. Krishna·Jul 25, 2024

The clever hybridization of quantum computing concepts and evolutionary algorithms (EAs) resulted in a new field called quantum-inspired evolutionary algorithms (QIEAs). Unlike traditional EAs, QIEAs employ quantum bits to adopt a probabilistic repre...

Computer Science

Computational Phase Transitions in Two-Dimensional Antiferromagnetic Melting

Zack Weinstein, Jalal Ahmad, D. Podolsky +1 more·Jul 25, 2024

A computational phase transition in a classical or quantum system is a non-analytic change in behavior of an order parameter which can only be observed with the assistance of a nontrivial classical computation. Such phase transitions, and the computa...

Physics

Few-Shot, Robust Calibration of Single Qubit Gates Using Bayesian Robust Phase Estimation

Travis Hurant, Ke-jia Sun, Zhubing Jia +2 more·Jul 25, 2024

Accurate calibration of control parameters in quan-tum gates is crucial for high-fidelity operations, yet it represents a significant time and resource challenge, necessitating periods of downtime for quantum computers. Robust Phase Estimation (RPE) ...

PhysicsComputer Science

Phase transitions in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>(</mml:mo><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo><mml:mi mathvariant="normal">D</mml:mi></mml:mrow></mml:math> subsystem-symmetric monitored quantum circuits

Cole Kelson-Packer, A. Miyake·Jul 25, 2024

The interplay of unitary evolution and projective measurements is a modern interest in the study of many-body entanglement. On the one hand, the competition between these two processes leads to the recently discovered measurement-induced phase transi...

Physics

Quantum landscape tomography for efficient single-gate optimization on quantum computers

Matan Ben-Dov, I. Arad, Emanuele G. Dalla Torre·Jul 25, 2024

Circuit optimization is a fundamental task for practical applications of near-term quantum computers. In this work we address this challenge through the powerful lenses of tensor network theory. Our approach involves the full characterization of the ...

Physics

Discretized Quantum Exhaustive Search for Variational Quantum Algorithms

Ittay Alfassi, Dekel Meirom, Tal Mor·Jul 24, 2024

Quantum computers promise a great computational advantage over classical computers, yet currently available quantum devices have only a limited amount of qubits and a high level of noise, limiting the size of problems that can be solved accurately wi...

Quantum Physics

Route-Forcing: Scalable Quantum Circuit Mapping for Scalable Quantum Computing Architectures

Pau Escofet, Alejandro Gonzalvo, Eduard Alarc'on +2 more·Jul 24, 2024

Quantum computers are expected to scale in size to close the gap that currently exists between quantum algorithms and quantum hardware. To this end, quantum compilation techniques must scale along with the hardware constraints, shifting the current p...

PhysicsComputer Science

Quanv4EO: Empowering Earth Observation by Means of Quanvolutional Neural Networks

A. Sebastianelli, Francesco Mauro, Giulia Ciabatti +4 more·Jul 24, 2024

A significant amount of remotely sensed data is generated daily by many Earth observation (EO) spaceborne and airborne sensors over different countries of our planet. Different applications use those data, such as natural hazard monitoring, global cl...

Computer ScienceEngineeringPhysics

Effective core potentials as a pathway to self-interaction error correction: a proof-of-concept study on one-electron systems

D. Lonsdale, L. Goerigk·Jul 24, 2024

In all applications of Density Functional Theory there is always a degree of one-electron self-interaction error (SIE). Here, we propose a simple self-interaction correction by applying an effective core potential (ECP) that replaces no electrons: we...

Physics

Tensor network enhanced dynamic multiproduct formulas

Niall F. Robertson, Bibek Pokharel, Bryce Fuller +10 more·Jul 24, 2024

Tensor networks and quantum computation are two of the most powerful tools for the simulation of quantum many-body systems. Rather than viewing them as competing approaches, here we consider how these two methods can work in tandem. We introduce a no...

Physics

Noise-Aware Distributed Quantum Approximate Optimization Algorithm on Near-Term Quantum Hardware

Kuan-Cheng Chen, Xiaotian Xu, Felix Burt +1 more·Jul 24, 2024

This paper introduces a noise-aware distributed Quantum Approximate Optimization Algorithm (QAOA) tailored for execution on near-term quantum hardware. Leveraging a distributed framework, we address the limitations of current Noisy Intermediate-Scale...

PhysicsComputer Science

Quantum Algorithms for Realizing Symmetric, Asymmetric, and Antisymmetric Projectors

Margarite L. LaBorde, Soorya Rethinasamy, Mark M. Wilde·Jul 24, 2024

In quantum computing, knowing the symmetries a given system or state obeys or disobeys is often useful. For example, Hamiltonian symmetries may limit allowed state transitions or simplify learning parameters in machine learning applications, and cert...

Physics
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