نتایج جستجو برای: quantum transport

تعداد نتایج: 558118  

Journal: :Journal of Statistical Physics 2020

Journal: :International Journal of Modern Physics B 2009

Journal: :Communications in Mathematical Sciences 2006

2000
Gerhard Klimeck Chris Bowen Timothy B. Boykin Adrian Stoica Thomas Cwik

Material variations on an atomic scale enable the quantum mechanical functionality of devices such as resonant tunneling diodes (RTDs), quantum well infrared photodetectors (QWIPs), quantum well lasers, and heterostructure field effect transistors (HFETs). The design and optimization of such heterostructure devices requires a detailed understanding of quantum mechanical electron transport. NEMO...

2012
Masoud Mohseni Ivan Kassal Torsten Scholak Thomas Wellens Adriana Marais Ilya Sinayskiy Alastair Kay Alán Aspuru-Guzik

Noise-assisted transport in quantum systems occurs when quantum time evolution and decoherence conspire to produce a transport efficiency that is higher than what would be seen in either the purely quantum or purely classical cases. In disordered systems, it has been understood as the suppression of coherent quantum localization through noise, which brings detuned quantum levels into resonance ...

Journal: :Science 2013
S Jezouin F D Parmentier A Anthore U Gennser A Cavanna Y Jin F Pierre

Quantum physics predicts that there is a fundamental maximum heat conductance across a single transport channel and that this thermal conductance quantum, G(Q), is universal, independent of the type of particles carrying the heat. Such universality, combined with the relationship between heat and information, signals a general limit on information transfer. We report on the quantitative measure...

Journal: :Physical review letters 2010
A Lengwenus J Kruse M Schlosser S Tichelmann G Birkl

We demonstrate the coherent transport of 2D arrays of small ensembles of neutral atoms in a shift register architecture based on 2D arrays of microlenses. We show the scalability of the transport process by presenting the repeated hand over of atoms from site to site. We prove the conservation of coherence during transport, reloading, and a full shift register cycle. This shows that the fundame...

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