Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27882926
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2016 ; 7
(ä): 13575
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
A CMOS silicon spin qubit
#MMPMID27882926
Maurand R
; Jehl X
; Kotekar-Patil D
; Corna A
; Bohuslavskyi H
; Laviéville R
; Hutin L
; Barraud S
; Vinet M
; Sanquer M
; De Franceschi S
Nat Commun
2016[Nov]; 7
(ä): 13575
PMID27882926
show ga
Silicon, the main constituent of microprocessor chips, is emerging as a promising
material for the realization of future quantum processors. Leveraging its
well-established complementary metal-oxide-semiconductor (CMOS) technology would
be a clear asset to the development of scalable quantum computing architectures
and to their co-integration with classical control hardware. Here we report a
silicon quantum bit (qubit) device made with an industry-standard fabrication
process. The device consists of a two-gate, p-type transistor with an undoped
channel. At low temperature, the first gate defines a quantum dot encoding a hole
spin qubit, the second one a quantum dot used for the qubit read-out. All
electrical, two-axis control of the spin qubit is achieved by applying a
phase-tunable microwave modulation to the first gate. The demonstrated qubit
functionality in a basic transistor-like device constitutes a promising step
towards the elaboration of scalable spin qubit geometries in a readily
exploitable CMOS platform.