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Title: Single shot spin readout with a cryogenic high-electron-mobility transistor amplifier at sub-Kelvin temperatures

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4941421· OSTI ID:1238671

We use a cryogenic high-electron-mobility transistor circuit to amplify the current from a single electron transistor, allowing for demonstration of single shot readout of an electron spin on a single P donor in Si with 100 kHz bandwidth and a signal to noise ratio of ~9. In order to reduce the impact of cable capacitance, the amplifier is located adjacent to the Si sample, at the mixing chamber stage of a dilution refrigerator. For a current gain of ~2.7 x 103 the power dissipation of the amplifier is 13 μW, the bandwidth is ~1.3 MHz, and for frequencies above 300 kHz the current noise referred to input is ≤ 70 fA/√Hz. Furthermore, with this amplification scheme, we are able to observe coherent oscillations of a P donor electron spin in isotopically enriched 28Si with 96% visibility.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1238671
Report Number(s):
SAND-2015-10479J; APPLAB; 614665; TRN: US1600398
Journal Information:
Applied Physics Letters, Vol. 108, Issue 6; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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Cited By (18)

Coherent coupling between a quantum dot and a donor in silicon journal October 2017
Single-Shot Readout Performance of Two Heterojunction-Bipolar-Transistor Amplification Circuits at Millikelvin Temperatures journal November 2019
SQUID-based current sensing noise thermometry for quantum resistors at dilution refrigerator temperatures journal March 2017
Increasing the signal-to-noise ratio of magnetic tunnel junctions by cryogenic preamplification journal April 2019
A compact, ultra-high vacuum ion source for isotopically enriching and depositing 28 Si thin films journal August 2019
Use of quantum effects as potential qualifying metrics for “quantum grade silicon” journal December 2019
Benchmarking high fidelity single-shot readout of semiconductor qubits journal June 2019
Control electronics for semiconductor spin qubits journal December 2019
Semiconductor quantum computation journal December 2018
Measurements of Capacitive Coupling Within a Quadruple-Quantum-Dot Array journal December 2019
Strain-Induced Spin-Resonance Shifts in Silicon Devices journal April 2018
Turing-complete mechanical processor via automated nonlinear system design journal October 2019
High-Fidelity Single-Shot Readout for a Spin Qubit via an Enhanced Latching Mechanism journal May 2018
Single-Shot Spin Readout in Semiconductors Near the Shot-Noise Sensitivity Limit journal October 2019
Control electronics for semiconductor spin qubits text January 2020
Coherent coupling between a quantum dot and a donor in silicon text January 2015
Strain-induced spin resonance shifts in silicon devices text January 2016
Characterization and Compact Modeling of Nanometer CMOS Transistors at Deep-Cryogenic Temperatures journal January 2018