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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
Quantum Hamiltonian Computing protocols for molecular electronics Boolean logic gates
Omid Faizy Namarvar
; Olivier Giraud; Bertrand Georgeot; Christian Joachim
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 035009
Corrigendum: Coherently displaced oscillator quantum states of a single trapped atom (2019 Quantum Sci. Technol. 4 024010)
Katherine C McCormick; Jonas Keller; David J Wineland; Andrew C Wilson; Dietrich Leibfried
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 039501
Optimal control of hybrid optomechanical systems for generating non-classical states of mechanical motion
Ville Bergholm; Witlef Wieczorek; Thomas Schulte-Herbrüggen; Michael Keyl
<jats:title>Abstract</jats:title> <jats:p>Cavity optomechanical systems are one of the leading experimental platforms for controlling mechanical motion in the quantum regime. We exemplify that the control over cavity optomechanical systems greatly increases by coupling the cavity also to a two-level system, thereby creating a hybrid optomechanical system. If the two-level system can be driven largely independently of the cavity, we show that the nonlinearity thus introduced enables us to steer the extended system to non-classical target states of the mechanical oscillator with Wigner functions exhibiting significant negative regions. We illustrate how to use optimal control techniques beyond the linear regime to drive the hybrid system from the near ground state into a Fock target state of the mechanical oscillator. We base our numerical optimization on realistic experimental parameters for exemplifying how optimal control enables the preparation of decidedly non-classical target states, where naive control schemes fail. Our results thus pave the way for applying the toolbox of optimal control in hybrid optomechanical systems for generating non-classical mechanical states.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 034001
Finding the ground state of the Hubbard model by variational methods on a quantum computer with gate errors
Jan-Michael Reiner; Frank Wilhelm-Mauch; Gerd Schön; Michael Marthaler
<jats:title>Abstract</jats:title> <jats:p>A key goal of digital quantum computing is the simulation of fermionic systems such as molecules or the Hubbard model. Unfortunately, for present and near-future quantum computers the use of quantum error correction schemes is still out of reach. Hence, the finite error rate limits the use of quantum computers to algorithms with a low number of gates. The variational Hamiltonian ansatz (VHA) has been shown to produce the ground state in good approximation in a manageable number of steps. Here we study explicitly the effect of gate errors on its performance. The VHA is inspired by the adiabatic quantum evolution under the influence of a time-dependent Hamiltonian, where the—ideally short—fixed Trotter time steps are replaced by variational parameters. The method profits substantially from quantum variational error suppression, e.g. unitary quasi-static errors are mitigated within the algorithm. We test the performance of the VHA when applied to the Hubbard model in the presence of unitary control errors on quantum computers with realistic gate fidelities.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 035005
Scalable high-rate, high-dimensional time-bin encoding quantum key distribution
Nurul T Islam; Charles Ci Wen Lim; Clinton Cahall; Bing Qi; Jungsang Kim; Daniel J Gauthier
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 035008
Mixed dynamical decoupling
Genko T Genov; Nati Aharon; Fedor Jelezko; Alex Retzker
<jats:title>Abstract</jats:title> <jats:p>We propose a scheme for mixed dynamical decoupling (MDD), where we combine continuous dynamical decoupling with robust sequences of phased pulses. Specifically, we use two fields for decoupling, where the first continuous driving field creates dressed states that are robust to environmental noise. Then, a second field implements a robust sequence of phased pulses to perform inversions of the dressed qubits, thus achieving robustness to amplitude fluctuations of both fields. We show that MDD outperforms standard concatenated continuous dynamical decoupling in realistic numerical simulations for dynamical decoupling in NV centers in diamond. Finally, we also demonstrate how our technique can be utilized for improved sensing.</jats:p>
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 035010
Towards a realization of device-independent quantum key distribution
G Murta; S B van Dam; J Ribeiro; R Hanson; S Wehner
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 035011
Andreev-reflection and Aharonov–Bohm dynamics in atomtronic circuits
Tobias Haug; Rainer Dumke; Leong-Chuan Kwek; Luigi Amico
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045001
Towards long-distance quantum networks with superconducting processors and optical links
Sourabh Kumar; Nikolai Lauk; Christoph Simon
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 045003
Dynamical generation of synthetic electric fields for photons in the quantum regime
Petr Zapletal; Andreas Nunnenkamp
Palabras clave: Electrical and Electronic Engineering; Physics and Astronomy (miscellaneous); Materials Science (miscellaneous); Atomic and Molecular Physics, and Optics.
Pp. 044001