scholarly journals Coherent electron focusing with quantum point contacts in a two-dimensional electron gas

1989 ◽  
Vol 39 (12) ◽  
pp. 8556-8575 ◽  
Author(s):  
H. van Houten ◽  
C. W. J. Beenakker ◽  
J. G. Williamson ◽  
M. E. I. Broekaart ◽  
P. H. M. van Loosdrecht ◽  
...  
Keyword(s):  
Electron Gas ◽  
Quantum Point Contacts ◽  
Two Dimensional ◽  
Point Contacts ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Quantum Point ◽  
Dimensional Electron Gas ◽  
Electron Focusing

Quantum Point Contacts in a Density-Tunable Two-Dimensional Electron Gas

2000 ◽  
Vol 39 (Part 2, No. 7A) ◽  
pp. L655-L657 ◽  
Author(s):  
Sebastien Nuttinck ◽  
Katsushi Hashimoto ◽  
Sen Miyashita ◽  
Tadashi Saku ◽  
Yoshihisa Yamamoto ◽  
...  
Keyword(s):  
Electron Gas ◽  
Quantum Point Contacts ◽  
Two Dimensional ◽  
Point Contacts ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Quantum Point ◽  
Dimensional Electron Gas

NON-ADIABATIC TRANSPORT IN QUANTUM POINT CONTACTS

1993 ◽  
Vol 07 (15) ◽  
pp. 1021-1027 ◽  
Author(s):  
A. BRATAAS ◽  
K.A. CHAO
Keyword(s):  
Adiabatic Approximation ◽  
Electron Gas ◽  
Excess Noise ◽  
Quantum Point Contacts ◽  
Point Contacts ◽  
Dimensional Electron ◽  
Sum Rule ◽  
Quantum Point ◽  
Dimensional Electron Gas ◽  
Exact Numerical Calculation

We have performed an exact numerical calculation on the conductance of a narrow constriction in a two-dimensional electron gas and discovered a novel sum rule that the conductance is invariant with respect to the channel mixing. This feature explains why the adiabatic approximation results fit the experimental data quantitatively. A similar sum rule has been found for the excess noise. These important conclusions remain to be derived analytically.

scholarly journals Gate-defined quantum point contact in an InAs two-dimensional electron gas

2019 ◽  
Vol 100 (7) ◽  
Author(s):  
Christopher Mittag ◽  
Matija Karalic ◽  
Zijin Lei ◽  
Candice Thomas ◽  
Aymeric Tuaz ◽  
...  
Keyword(s):  
Electron Gas ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Quantum Point ◽  
Dimensional Electron Gas

scholarly journals Gate-defined quantum point contact in an InSb two-dimensional electron gas

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Zijin Lei ◽  
Christian A. Lehner ◽  
Erik Cheah ◽  
Christopher Mittag ◽  
Matija Karalic ◽  
...  
Keyword(s):  
Electron Gas ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Quantum Point ◽  
Dimensional Electron Gas

scholarly journals Quantized conductance of point contacts in a two-dimensional electron gas

1988 ◽  
Vol 60 (9) ◽  
pp. 848-850 ◽  
Author(s):  
B. J. van Wees ◽  
H. van Houten ◽  
C. W. J. Beenakker ◽  
J. G. Williamson ◽  
L. P. Kouwenhoven ◽  
...  
Keyword(s):  
Electron Gas ◽  
Two Dimensional ◽  
Point Contacts ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas
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