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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
Signatures of the quantum nature of gravity in the differential motion of two masses
Animesh Datta
; Haixing Miao
<jats:title>Abstract</jats:title> <jats:p>We show that a signature of the quantum nature of gravity is the quantum mechanical squeezing of the differential motion of two identical masses with respect to their common mode. This is because the gravitational interaction depends solely on the relative position of the two masses. In principle, this squeezing is equivalent to quantum entanglement between the masses. In practice, detecting the squeezing is more feasible than detecting the entanglement. To that end, we propose an optical interferometric scheme to falsify hypothetical models of gravity.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045014
Automatic design of quantum feature maps
Sergio Altares-López; Angela Ribeiro; Juan José García-Ripoll
<jats:title>Abstract</jats:title> <jats:p>We propose a new technique for the automatic generation of optimal ad-hoc ansätze for classification by using quantum support vector machine. This efficient method is based on non-sorted genetic algorithm II multiobjective genetic algorithms which allow both maximize the accuracy and minimize the ansatz size. It is demonstrated the validity of the technique by a practical example with a non-linear dataset, interpreting the resulting circuit and its outputs. We also show other application fields of the technique that reinforce the validity of the method, and a comparison with classical classifiers in order to understand the advantages of using quantum machine learning.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045015
Einstein–Podolsky–Rosen paradox with position–momentum entangled macroscopic twin beams
Ashok Kumar; Gaurav Nirala; Alberto M Marino
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045016
Entangled quantum cellular automata, physical complexity, and Goldilocks rules
Logan E Hillberry; Matthew T Jones; David L Vargas; Patrick Rall; Nicole Yunger Halpern; Ning Bao; Simone Notarnicola; Simone Montangero; Lincoln D Carr
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045017
Sensing quantum chaos through the non-unitary geometric phase
Nicolás Mirkin; Diego A. Wisniacki; Paula I Villar; Fernando C Lombardo
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045018
Finite-key analysis for quantum conference key agreement with asymmetric channels
Zhao Li; Xiao-Yu Cao; Chen-Long Li; Chen-Xun Weng; Jie Gu; Hua-Lei Yin; Zeng-Bing Chen
<jats:title>Abstract</jats:title> <jats:p>As an essential ingredient of quantum networks, quantum conference key agreement (QCKA) provides unconditional secret keys among multiple parties, which enables only legitimate users to decrypt the encrypted message. Recently, some QCKA protocols employing twin-field was proposed to promote transmission distance. These protocols, however, suffer from relatively low conference key rate and short transmission distance over asymmetric channels, which demands a prompt solution in practice. Here, we consider a tripartite QCKA protocol utilizing the idea of sending-or-not-sending twin-field scheme and propose a high-efficiency QCKA over asymmetric channels by removing the symmetry parameters condition. Besides, we provide a composable finite-key analysis with rigorous security proof against general attacks by exploiting the entropic uncertainty relation for multiparty system. Our protocol greatly improves the feasibility to establish conference keys over asymmetric channels.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045019
Indexed improvements for real-time trotter evolution of a (1 + 1) field theory using NISQ quantum computers
Erik Gustafson; Patrick Dreher; Zheyue Hang; Yannick Meurice
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045020
Universal quantum state preparation via revised greedy algorithm
Run-Hong He; Hai-Da Liu; Sheng-Bin Wang; Jing Wu; Shen-Shuang Nie; Zhao-Ming Wang
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045021
Blind oracular quantum computation
Cica Gustiani; David P DiVincenzo
<jats:title>Abstract</jats:title> <jats:p>In the standard oracle model, an oracle efficiently evaluates an unknown classical function independent of the quantum algorithm itself. Quantum algorithms have a complex interrelationship to their oracles; for example the possibility of quantum speedup is affected by the manner by which oracles are implemented. Therefore, it is physically meaningful to separate oracles from their quantum algorithms, and we introduce one such separation here. We define the <jats:italic>blind oracular quantum computation</jats:italic> (BOQC) scheme, in which the oracle is a distinct node in a quantum network. Our work augments the client–server setting of quantum computing, in which a powerful quantum computer server is available on the network for discreet use by clients on the network with low quantum power. In BOQC, an oracle is another client that cooperates with the main client so that an oracular quantum algorithm is run on the server. The cooperation between the main client and the oracle takes place (almost) without communication. We prove BOQC to be <jats:italic>blind</jats:italic>: the server cannot learn anything about the clients’ computation. This proof is performed within the composable security definitions provided by the formalism of abstract cryptography. We enhance the BOQC scheme to be runnable with minimal physical qubits when run on a solid-state quantum network; we prove that this scheme, which we refer to as BOQCo (BOQC-optimized), possesses the same security as BOQC.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045022
Shortcuts to adiabatic rotation of a two-ion chain
Ander Tobalina; Juan Gonzalo Muga; Ion Lizuain; Mikel Palmero
<jats:title>Abstract</jats:title> <jats:p>We inverse engineer fast rotations of a transversally tight, linear trap with two ions for a predetermined rotation angle and time, avoiding final excitation. Different approaches are analyzed and compared when the ions are of the same species or of different species. The separability into dynamical normal modes for equal ions in a harmonic trap, or for different ions in non-harmonic traps with up to quartic terms allows for simpler computations of the rotation protocols. For non-separable scenarios, in particular for different ions in harmonic traps, rotation protocols are also found using more costly numerical optimisations.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045023