Quantum Brain

Papers

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

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31,204

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15,361 papers in 12 months (-8% vs prior quarter)

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31,204 papers found

Accelerating Quantum Computations of Chemistry Through Regularized Compressed Double Factorization

O. Oumarou, Maximilian Scheurer, R. Parrish +2 more·Dec 15, 2022

We propose the regularized compressed double factorization (RC-DF) method to classically compute compressed representations of molecular Hamiltonians that enable efficient simulation with noisy intermediate scale (NISQ) and error corrected quantum al...

PhysicsComputer Science

Quantum Methods for Neural Networks and Application to Medical Image Classification

Jonas Landman, Natansh Mathur, Yun Li +4 more·Dec 14, 2022

Quantum machine learning techniques have been proposed as a way to potentially enhance performance in machine learning applications. In this paper, we introduce two new quantum methods for neural networks. The first one is a quantum orthogonal neural...

Computer SciencePhysics

Classical simulators as quantum error mitigators via circuit cutting

Ji Liu, Alvin Gonzales, Zain Saleem·Dec 14, 2022

We introduce an error mitigation framework that mitigates errors in a quantum circuit using circuit cutting. Our framework can be implemented in polynomial time for a wide variety of quantum circuits. Our technique involves cutting the circuit in suc...

Physics

Reconstructing charged particle track segments with a quantum-enhanced support vector machine

Philippa Duckett, G. Facini, Marcin Jastrzębski +3 more·Dec 14, 2022

Reconstructing the trajectories of charged particles from the collection of hits they leave in the detectors of collider experiments like those at the Large Hadron Collider (LHC) is a challenging combinatorics problem and computationally intensive. T...

Physics

Tactile Network Resource Allocation Enabled by Quantum Annealing Based on ILP Modeling

Arthur Witt, C. Körber, Andreas Kirstädter +1 more·Dec 14, 2022

Agile networks with fast adaptation and reconfiguration capabilities are required for on-demand provisioning of various network services. We propose a new methodical framework for short-time network optimization based on quantum computing (QC) and in...

PhysicsMathematicsComputer Science

Time-dependent Rabi frequencies to protect quantum operations on an atomic qutrit by continuous dynamical decoupling

Adonai Hilário da Silva, R. Napolitano, F. Fanchini +1 more·Dec 14, 2022

We investigate the form required for the time-dependent Rabi frequencies involved in a procedure capable to protect the action of quantum gates on an atomic qutrit by means of external fields continuously decoupling the system from the environmental ...

Physics

Quantum transport in graphene nanoribbon networks: complexity reduction by a network decimation algorithm

T. Rodemund, Fabian Teichert, M. Hentschel +1 more·Dec 14, 2022

We study electronic quantum transport (QT) in graphene nanoribbon (GNR) networks on mesoscopic length scales. We focus on zigzag GNRs and investigate the conductance properties of statistical networks. To this end we use a density-functional-based ti...

Physics

A Novel State Connection Strategy for Quantum Computing to Represent and Compress Digital Images

Md. Ershadul Haque, M. Paul, Tanmoy Debnath·Dec 14, 2022

Quantum image processing draws a lot of attention due to faster data computation and storage compared to classical data processing systems. Converting classical image data into the quantum domain and state label preparation complexity is still a chal...

Computer SciencePhysics

Identifying Pauli blockade regimes in bilayer graphene double quantum dots

Ankan Mukherjee, B. Muralidharan·Dec 14, 2022

Recent experimental observations of current blockades in 2D material quantum-dot platforms have opened new avenues for spin and valley-qubit processing. Motivated by experimental results, we construct a model capturing the delicate interplay of Coulo...

Physics

Quantum Clustering with k-Means: a Hybrid Approach

Alessandro Poggiali, Alessandro Berti, A. Bernasconi +2 more·Dec 13, 2022

Quantum computing is a promising paradigm based on quantum theory for performing fast computations. Quantum algorithms are expected to surpass their classical counterparts in terms of computational complexity for certain tasks, including machine lear...

Computer SciencePhysics

A graph-state based synthesis framework for Clifford isometries

T. Brugière, S. Martiel, Christophe Vuillot·Dec 13, 2022

We tackle the problem of Clifford isometry compilation, i.e, how to synthesize a Clifford isometry into an executable quantum circuit. We propose a simple framework for synthesis that only exploits the elementary properties of the Clifford group and ...

Computer SciencePhysics

A Quantum Computing Approach for the Unit Commitment Problem

Pascal Halffmann, Patrick Holzer, K. Plociennik +1 more·Dec 13, 2022

Planning energy production is a challenging task due to its cost-sensitivity, fast-moving energy markets, uncertainties in demand, and technical constraints of power plants. Thus, more complex models of this so-called \emph{unit commitment problem (U...

Computer SciencePhysicsMathematics

Soliton versus single-photon quantum dynamics in arrays of superconducting qubits

Ben Blain, G. Marchegiani, J. Polo +2 more·Dec 13, 2022

Superconducting circuits constitute a promising platform for future implementation of quantum processors and simulators. Arrays of capacitively coupled transmon qubits naturally implement the Bose-Hubbard model with attractive on-site interaction. Th...

Physics

Quantum Policy Gradient Algorithm with Optimized Action Decoding

Nico Meyer, D. D. Scherer, A. Plinge +2 more·Dec 13, 2022

Quantum machine learning implemented by variational quantum circuits (VQCs) is considered a promising concept for the noisy intermediate-scale quantum computing era. Focusing on applications in quantum reinforcement learning, we propose a specific ac...

Computer SciencePhysics

A programming language characterizing quantum polynomial time

Emmanuel Hainry, Romain P'echoux, M'ario Silva·Dec 13, 2022

We introduce a first-order quantum programming language, named FOQ, whose terminating programs are reversible. We restrict FOQ to a strict and tractable subset, named PFOQ, of terminating programs with bounded width, that provides a first programming...

Computer Science

Boltzmann distributions on a quantum computer via active cooling

Carter Ball, T. Cohen·Dec 13, 2022

Quantum computing raises the possibility of solving a variety of problems in physics that are presently intractable. A number of such problems involves the physics of systems in or near thermal equilibrium. There are two main ways to compute thermal ...

Physics

Category Theory for Quantum Natural Language Processing

Alexis Toumi·Dec 13, 2022

This thesis introduces quantum natural language processing (QNLP) models based on a simple yet powerful analogy between computational linguistics and quantum mechanics: grammar as entanglement. The grammatical structure of text and sentences connects...

Computer ScienceMathematicsPhysics

High-Threshold Quantum Computing by Fusing One-Dimensional Cluster States.

S. Paesani, Benjamin J. Brown·Dec 13, 2022

We propose a measurement-based model for fault-tolerant quantum computation that can be realized with one-dimensional cluster states and fusion measurements only; basic resources that are readily available with scalable photonic hardware. Our simulat...

MedicinePhysics

Interaction graph-based characterization of quantum benchmarks for improving quantum circuit mapping techniques

Medina Bandi'c, C. G. Almudéver, Sebastian Feld·Dec 13, 2022

To execute quantum circuits on a quantum processor, they must be modified to meet the physical constraints of the quantum device. This process, called quantum circuit mapping , results in a gate/circuit depth overhead that depends on both the circuit...

PhysicsComputer Science

Finite-round quantum error correction on symmetric quantum sensors

Yingkai Ouyang, Gavin K. Brennen·Dec 12, 2022

In quantum sensing using $N$ entangled probes, the variance of the estimated signal strength $\hatθ$ scales like $ Θ(N^{-2})$ at the Heisenberg limit, which is a quadratic improvement over the standard quantum limit, and is the maximum quantum advant...

Quantum Physics
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