Results 71 to 80 of about 1,699,778 (381)

Dissipation-induced structural instability and chiral dynamics in a quantum gas [PDF]

open access: yesScience, 2019
Chirality by dissipation Quantum many-body systems can display exotic dynamics in the presence of dissipation. Dogra et al. studied such dynamics in a system consisting of an atomic Bose-Einstein condensate located in an optical cavity and exposed to a ...
N. Dogra   +5 more
semanticscholar   +1 more source

Ultra-Low-Power Superconductor Logic

open access: yes, 2011
We have developed a new superconducting digital technology, Reciprocal Quantum Logic, that uses AC power carried on a transmission line, which also serves as a clock.
Alexander G. Ioannidis   +4 more
core   +1 more source

Dissipative quantum repeater [PDF]

open access: yesQuantum Information Processing, 2019
By implementing a quantum repeater protocol, our aim in this paper is the production of entanglement between two two-level atoms locating far from each other. To make our model close to experimental realizations, the atomic and field sources of dissipations are also taken into account. We consider eight of such atoms (1, 2, ..., 8) sequentially located
Ghasemi, M., Tavassoly, M. K.
openaire   +3 more sources

Asymmetric power dissipation in electronic transport through a quantum point contact

open access: yesSciPost Physics, 2022
We investigate the power dissipated by an electronic current flowing through a quantum point contact in a two-dimensional electron gas. Based on the Landauer-B\"uttiker approach to quantum transport, we evaluate the power that is dissipated on the two
Carmen Blaas-Anselmi, Félix Helluin, Rodolfo A. Jalabert, Guillaume Weick, Dietmar Weinmann
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Controlling transfer and chirality of topological quantum state through dissipation in quantum walk

open access: yesPhysical Review Research
Dissipation always exists in real environments, and it can cause decoherence during transfer of quantum states. To avoid decoherence, dissipation is usually shielded. However, dissipation is difficult to avoid in real cases.
Xing Tang, Tian Chen, Xiangdong Zhang
doaj   +1 more source

Mutual friction and diffusion of two-dimensional quantum vortices

open access: yesPhysical Review Research, 2023
Dissipation of quantum vortex motion is fundamental to superfluid dynamics and quantum turbulence, yet there is currently a large gap between theory and experiments with ultracold atoms.
Zain Mehdi   +3 more
doaj   +1 more source

Direct transition from quantum escape to phase diffusion regime in YBaCuO biepitaxial Josephson Junctions

open access: yes, 2012
Dissipation encodes interaction of a quantum system with the environment and regulates the activation regimes of a Brownian particle. We have engineered grain boundary biepitaxial YBaCuO junctions to drive a direct transition from quantum activated ...
Galletti, Luca   +6 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp   +7 more
wiley   +1 more source

Quantum Dissipation and the Virial Theorem [PDF]

open access: yesSocial Science Research Network, 2023
Aritra Ghosh, M. Bandyopadhyay
semanticscholar   +1 more source

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