Results 11 to 20 of about 302,566 (256)

Continuous-variable quantum neural networks

open access: yesPhysical Review Research, 2019
We introduce a general method for building neural networks on quantum computers. The quantum neural network is a variational quantum circuit built in the continuous-variable (CV) architecture, which encodes quantum information in continuous degrees of ...
Nathan Killoran   +5 more
doaj   +2 more sources

Distributed quantum sensing enhanced by continuous-variable error correction [PDF]

open access: yesNew Journal of Physics, 2020
A distributed sensing protocol uses a network of local sensing nodes to estimate a global feature of the network, such as a weighted average of locally detectable parameters.
Quntao Zhuang   +2 more
doaj   +3 more sources

Efficient Quantum Teleportation of Unknown Qubit Based on DV-CV Interaction Mechanism

open access: yesEntropy, 2019
We propose and develop the theory of quantum teleportation of an unknown qubit based on the interaction mechanism between discrete-variable (DV) and continuous-variable (CV) states on highly transmissive beam splitter (HTBS).
Sergey A. Podoshvedov
doaj   +3 more sources

Cluster States from Gaussian States: Essential Diagnostic Tools for Continuous-Variable One-Way Quantum Computing

open access: yesPRX Quantum, 2021
Continuous-variable (CV) cluster states are a universal quantum computing platform that has experimentally outscaled qubit platforms by orders of magnitude.
Carlos González-Arciniegas   +3 more
doaj   +1 more source

Gain Saturation Modified Quantum Noise Effect on Preparing a Continuous-Variable Entanglement

open access: yesPhotonics, 2022
We examine the gain saturation effect in non-Hermitian systems of coupled gain–loss waveguides and whispering-gallery-mode microresonators, through which a continuous-variable (CV) entanglement of light fields is generated.
Saeid Vashahri-Ghamsari, Bing He
doaj   +1 more source

Measurement-based generation and preservation of cat and grid states within a continuous-variable cluster state [PDF]

open access: yesQuantum, 2022
We present an algorithm to reliably generate various quantum states critical to quantum error correction and universal continuous-variable (CV) quantum computing, such as Schrödinger cat states and Gottesman-Kitaev-Preskill (GKP) grid states, out of ...
Miller Eaton   +4 more
doaj   +1 more source

Hierarchy of continuous-variable quantum resource theories

open access: yesNew Journal of Physics, 2021
Connections between the resource theories of coherence and purity (or non-uniformity) are well known for discrete-variable, finite-dimensional, quantum systems.
Giulio Gianfelici   +2 more
doaj   +1 more source

Continuous-variable quantum repeater based on quantum scissors and mode multiplexing

open access: yesPhysical Review Research, 2020
Quantum repeaters are indispensable for high-rate, long-distance quantum communications. The vision of a future quantum internet strongly hinges on realizing quantum repeaters in practice.
Kaushik P. Seshadreesan   +2 more
doaj   +1 more source

Optimal tests for continuous-variable quantum teleportation and photodetectors

open access: yesPhysical Review Research, 2022
Quantum teleportation is a primitive in several important applications, including quantum communication, quantum computation, error correction, and quantum networks. In this paper, we propose an optimal test for the performance of continuous-variable (CV)
Kunal Sharma   +2 more
doaj   +1 more source

Ancilla-free continuous-variable SWAP test [PDF]

open access: yesQuantum, 2022
We propose a continuous-variable (CV) SWAP test that requires no ancilla register, thereby generalizing the ancilla-free SWAP test for qubits. In this ancilla-free CV SWAP test, the computational basis measurement is replaced by photon number-resolving ...
T. J. Volkoff, Yiğit Subaşı
doaj   +1 more source

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