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Quantum Science and Technology
Resumen/Descripción – provisto por la editorial en inglés
A multidisciplinary, high impact journal devoted to publishing research of the highest quality and significance covering the science and application of all quantum-enabled technologies.Palabras clave – provistas por la editorial
No disponibles.
Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde ago. 2016 / hasta dic. 2023 | IOPScience |
Información
Tipo de recurso:
revistas
ISSN electrónico
2058-9565
Editor responsable
IOP Publishing (IOP)
País de edición
Estados Unidos
Fecha de publicación
2016-
Cobertura temática
Tabla de contenidos
Open quantum systems with delayed coherent feedback
S J Whalen; A L Grimsmo; H J Carmichael
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044008
Active SU(1,1) atom interferometry
D Linnemann; J Schulz; W Muessel; P Kunkel; M Prüfer; A Frölian; H Strobel; M K Oberthaler
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044009
Sensing spontaneous collapse and decoherence with interfering Bose–Einstein condensates
Björn Schrinski; Klaus Hornberger
; Stefan Nimmrichter
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044010
Towards generic adiabatic elimination for bipartite open quantum systems
R Azouit; F Chittaro; A Sarlette; P Rouchon
<jats:title>Abstract</jats:title> <jats:p>We consider a composite open quantum system consisting of a fast subsystem coupled to a slow one. Using the time scale separation, we develop an adiabatic elimination technique to derive at any order the reduced model describing the slow subsystem. The method, based on an asymptotic expansion and geometric singular perturbation theory, ensures the physical interpretation of the reduced second-order model by giving the reduced dynamics in a Lindblad form and the state reduction in Kraus map form. We give explicit second-order formulas for Hamiltonian or cascade coupling between the two subsystems. These formulas can be used to engineer, via a careful choice of the fast subsystem, the Hamiltonian and Lindbald operators governing the dissipative dynamics of the slow subsystem.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044011
Delayed coherent quantum feedback from a scattering theory and a matrix product state perspective
P-O Guimond; M Pletyukhov; H Pichler; P Zoller
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044012
Secure detection in quantum key distribution by real-time calibration of receiver
Øystein Marøy; Vadim Makarov; Johannes Skaar
<jats:title>Abstract</jats:title> <jats:p>The single-photon detectionefficiency of the detector unit is crucial for the security of common quantum key distribution protocols like Bennett-Brassard 1984 (BB84). A low value for the efficiency indicates a possible eavesdropping attack that exploits the photon receiver’s imperfections. We present a method for estimating the detection efficiency, and calculate the corresponding secure key generation rate. The estimation is done by testing gated detectors using a randomly activated photon source inside the receiver unit. This estimate gives a secure rate for any detector with non-unity single-photon detection efficiency, both inherit or due to blinding. By adding extra optical components to the receiver, we make sure that the key is extracted from photon states for which our estimate is valid. The result is a quantum key distribution scheme that is secure against any attack that exploits detector imperfections.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044013
Locally optimal symplectic control of multimode Gaussian states
Uther Shackerley-Bennett; Alberto Carlini; Vittorio Giovannetti; Alessio Serafini
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044014
Quantum autoencoders for efficient compression of quantum data
Jonathan Romero; Jonathan P Olson; Alan Aspuru-Guzik
<jats:title>Abstract</jats:title> <jats:p>Classical autoencoders are neural networks that can learn efficient low-dimensional representations of data in higher-dimensional space. The task of an autoencoder is, given an input <jats:italic>x</jats:italic>, to map <jats:italic>x</jats:italic> to a lower dimensional point <jats:italic>y</jats:italic> such that <jats:italic>x</jats:italic> can likely be recovered from <jats:italic>y</jats:italic>. The structure of the underlying autoencoder network can be chosen to represent the data on a smaller dimension, effectively compressing the input. Inspired by this idea, we introduce the model of a quantum autoencoder to perform similar tasks on quantum data. The quantum autoencoder is trained to compress a particular data set of quantum states, where a classical compression algorithm cannot be employed. The parameters of the quantum autoencoder are trained using classical optimization algorithms. We show an example of a simple programmable circuit that can be trained as an efficient autoencoder. We apply our model in the context of quantum simulation to compress ground states of the Hubbard model and molecular Hamiltonians.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045001
Quantum processing by remote quantum control
Xiaogang Qiang; Xiaoqi Zhou; Kanin Aungskunsiri; Hugo Cable; Jeremy L O’Brien
<jats:title>Abstract</jats:title> <jats:p>Client-server models enable computations to be hosted remotely on quantum servers. We present a novel protocol for realizing this task, with practical advantages when using technology feasible in the near term. Client tasks are realized as linear combinations of operations implemented by the server, where the linear coefficients are hidden from the server. We report on an experimental demonstration of our protocol using linear optics, which realizes linear combination of two single-qubit operations by a remote single-qubit control. In addition, we explain when our protocol can remain efficient for larger computations, as well as some ways in which privacy can be maintained using our protocol.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045002
Deterministic quantum state transfer between remote qubits in cavities
B Vogell; B Vermersch; T E Northup; B P Lanyon; C A Muschik
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045003