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Energetics of Microwaves Probed by Double Quantum Dot Absorption

Haldar, Subhomoy LU ; Havir, Harald LU ; Khan, Waqar LU ; Lehmann, Sebastian LU ; Thelander, Claes LU ; Dick, Kimberly A. LU and Maisi, Ville F. LU (2023) In Physical Review Letters 130(8).
Abstract

We explore the energetics of microwaves interacting with a double quantum dot photodiode and show wave-particle aspects in photon-assisted tunneling. The experiments show that the single-photon energy sets the relevant absorption energy in a weak-drive limit, which contrasts the strong-drive limit where the wave amplitude determines the relevant-energy scale and opens up microwave-induced bias triangles. The threshold condition between these two regimes is set by the fine-structure constant of the system. The energetics are determined here with the detuning conditions of the double dot system and stopping-potential measurements that constitute a microwave version of the photoelectric effect.

Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
130
issue
8
article number
087003
publisher
American Physical Society
external identifiers
  • pmid:36898111
  • scopus:85149657577
ISSN
0031-9007
DOI
10.1103/PhysRevLett.130.087003
language
English
LU publication?
yes
id
7116a458-c853-410f-9ee1-772364b3ee5d
date added to LUP
2023-06-09 14:33:48
date last changed
2024-04-19 22:43:25
@article{7116a458-c853-410f-9ee1-772364b3ee5d,
  abstract     = {{<p>We explore the energetics of microwaves interacting with a double quantum dot photodiode and show wave-particle aspects in photon-assisted tunneling. The experiments show that the single-photon energy sets the relevant absorption energy in a weak-drive limit, which contrasts the strong-drive limit where the wave amplitude determines the relevant-energy scale and opens up microwave-induced bias triangles. The threshold condition between these two regimes is set by the fine-structure constant of the system. The energetics are determined here with the detuning conditions of the double dot system and stopping-potential measurements that constitute a microwave version of the photoelectric effect.</p>}},
  author       = {{Haldar, Subhomoy and Havir, Harald and Khan, Waqar and Lehmann, Sebastian and Thelander, Claes and Dick, Kimberly A. and Maisi, Ville F.}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{8}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Energetics of Microwaves Probed by Double Quantum Dot Absorption}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.130.087003}},
  doi          = {{10.1103/PhysRevLett.130.087003}},
  volume       = {{130}},
  year         = {{2023}},
}