Search Results for author: Kunal Sharma

Found 7 papers, 1 papers with code

Analytic theory for the dynamics of wide quantum neural networks

no code implementations30 Mar 2022 Junyu Liu, Khadijeh Najafi, Kunal Sharma, Francesco Tacchino, Liang Jiang, Antonio Mezzacapo

We define wide quantum neural networks as parameterized quantum circuits in the limit of a large number of qubits and variational parameters.

Quantum Machine Learning

Generalization in quantum machine learning from few training data

no code implementations9 Nov 2021 Matthias C. Caro, Hsin-Yuan Huang, M. Cerezo, Kunal Sharma, Andrew Sornborger, Lukasz Cincio, Patrick J. Coles

Modern quantum machine learning (QML) methods involve variationally optimizing a parameterized quantum circuit on a training data set, and subsequently making predictions on a testing data set (i. e., generalizing).

BIG-bench Machine Learning Quantum Machine Learning

Connecting ansatz expressibility to gradient magnitudes and barren plateaus

1 code implementation6 Jan 2021 Zoë Holmes, Kunal Sharma, M. Cerezo, Patrick J. Coles

Parameterized quantum circuits serve as ans\"{a}tze for solving variational problems and provide a flexible paradigm for programming near-term quantum computers.

Optimal tests for continuous-variable quantum teleportation and photodetectors

no code implementations4 Dec 2020 Kunal Sharma, Barry C. Sanders, Mark M. Wilde

In this work, we propose an optimal test for the performance of continuous-variable (CV) quantum teleportation in terms of the energy-constrained channel fidelity between ideal CV teleportation and its experimental implementation.

Quantum Physics Optics

Noise-Induced Barren Plateaus in Variational Quantum Algorithms

no code implementations28 Jul 2020 Samson Wang, Enrico Fontana, M. Cerezo, Kunal Sharma, Akira Sone, Lukasz Cincio, Patrick J. Coles

Specifically, for the local Pauli noise considered, we prove that the gradient vanishes exponentially in the number of qubits $n$ if the depth of the ansatz grows linearly with $n$.

Visual Question Answering (VQA)

Reformulation of the No-Free-Lunch Theorem for Entangled Data Sets

no code implementations9 Jul 2020 Kunal Sharma, M. Cerezo, Zoë Holmes, Lukasz Cincio, Andrew Sornborger, Patrick J. Coles

With the recent rise of quantum machine learning, it is natural to ask whether there is a quantum analog of the NFL theorem, which would restrict a quantum computer's ability to learn a unitary process (the quantum analog of a function) with quantum training data.

BIG-bench Machine Learning Learning Theory +1

Trainability of Dissipative Perceptron-Based Quantum Neural Networks

no code implementations26 May 2020 Kunal Sharma, M. Cerezo, Lukasz Cincio, Patrick J. Coles

Several architectures have been proposed for quantum neural networks (QNNs), with the goal of efficiently performing machine learning tasks on quantum data.

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