scholarly journals Role of H Distribution on Coherent Quantum Transport of Electrons in Hydrogenated Graphene

2017 ◽  
Vol 2 (4) ◽  
pp. 37 ◽  
Author(s):  
Luca Parisi ◽  
Giuseppe Angilella ◽  
Ioannis Deretzis ◽  
Renato Pucci ◽  
Antonio La Magna
Keyword(s):  
Quantum Transport ◽  
Hydrogenated Graphene ◽  
Coherent Quantum

scholarly journals Publisher's Note: Direct imaging of coherent quantum transport in graphenep−n−pjunctions [Phys. Rev. B92, 125414 (2015)]

2015 ◽  
Vol 92 (11) ◽  
Author(s):  
E. D. Herbschleb ◽  
R. K. Puddy ◽  
P. Marconcini ◽  
J. P. Griffiths ◽  
G. A. C. Jones ◽  
...  
Keyword(s):  
Quantum Transport ◽  
Direct Imaging ◽  
Coherent Quantum

The Role of Electron Phase Coherence in Quantum Transport through Open Ballistic Cavities

1997 ◽  
Vol 36 (Part 1, No. 6B) ◽  
pp. 3968-3970
Author(s):  
Jonathan P. Bird ◽  
Adam P. Micolich ◽  
Richard Akis ◽  
David K. Ferry ◽  
Richard Newbury ◽  
...  
Keyword(s):  
Quantum Transport ◽  
Phase Coherence

Quantum Coherences as a Thermodynamic Potential

2019 ◽  
Vol 26 (04) ◽  
pp. 1950022
Author(s):  
César A. Rodríguez-Rosario ◽  
Thomas Frauenheim ◽  
Alán Aspuru-Guzik
Keyword(s):  
Entropy Production ◽  
Quantum Transport ◽  
Thermodynamic Potential ◽  
Quantum Measurements ◽  
Second Law ◽  
General Sense ◽  
Thermodynamic Potentials ◽  
General Systems ◽  
Thermodynamic Effects

Here we demonstrate how the interplay between quantum coherences and a decoherence bath, such as one given by continuos quantum measurements, lead to new kinds of thermodynamic potentials and flows. We show how a mathematical extension of thermodynamics includes decoherence baths leading to a more general sense of the zeroth and first law. We also show how decoherence adds contributions to the change in entropy production in the second law. We derive a thermodynamic potential that depends only on the interplay between quantum coherences and a decoherence thermodynamic bath. This leads to novel thermodynamic effects, such as Onsager relationships that depend on quantum coherences. This provides a thermodynamics interpretation of the role of decoherence on quantum transport in very general systems.

scholarly journals Spin coherent quantum transport of electrons between defects in diamond

Nanophotonics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1975-1984 ◽  
Author(s):  
Lachlan M. Oberg ◽  
Eric Huang ◽  
Prithvi M. Reddy ◽  
Audrius Alkauskas ◽  
Andrew D. Greentree ◽  
...  
Keyword(s):  
Quantum Transport ◽  
Large Scale ◽  
Quantum Information Processing ◽  
Nitrogen Vacancy ◽  
Small Scale ◽  
Spin Quantum ◽  
Quantum Bus ◽  
On Chip ◽  
Coherent Quantum ◽  
Nv Centers

AbstractThe nitrogen-vacancy (NV) color center in diamond has rapidly emerged as an important solid-state system for quantum information processing. Whereas individual spin registers have been used to implement small-scale diamond quantum computing, the realization of a large-scale device requires the development of an on-chip quantum bus for transporting information between distant qubits. Here, we propose a method for coherent quantum transport of an electron and its spin state between distant NV centers. Transport is achieved by the implementation of spatial stimulated adiabatic Raman passage through the optical control of the NV center charge states and the confined conduction states of a diamond nanostructure. Our models show that, for two NV centers in a diamond nanowire, high-fidelity transport can be achieved over distances of order hundreds of nanometers in timescales of order hundreds of nanoseconds. Spatial adiabatic passage is therefore a promising option for realizing an on-chip spin quantum bus.

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