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7 papers · 1 filter
Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot
Wenxian Zhang, N. P. Konstantinidis, V. V. Dobrovitski +3
The coherence time of an electron spin decohered by the nuclear spin environment in a quantum dot can be substantially increased by subjecting the electron to suitable dynamical de…
On-Chip Matching Networks for Radio-Frequency Single-Electron-Transistors
W. W. Xue, Z. Ji, B. Davis +4
In this letter, we describe operation of a radio-frequency superconducting single electron transistor (RF-SSET) with an on-chip superconducting LC matching network consisting of a…
Spin blockade and lifetime-enhanced transport in a few-electron Si/SiGe double quantum dot
Nakul Shaji, C. B. Simmons, Madhu Thalakulam +11
Spin blockade occurs when an electron is unable to access an energetically favorable path through a quantum dot due to spin conservation, resulting in a blockade of the current thr…
Displacement Detection with a Vibrating RF SQUID: Beating the Standard Linear Limit
Eyal Buks, Stav Zaitsev, Eran Segev +2
We study a novel configuration for displacement detection consisting of a nanomechanical resonator coupled to both, a radio frequency superconducting interference device (RF SQUID)…
Dynamical control of electron spin coherence in a quantum dot
Wenxian Zhang, V. V. Dobrovitski, Lea F. Santos +2
We investigate the performance of dynamical decoupling methods at suppressing electron spin decoherence from a low-temperature nuclear spin reservoir in a quantum dot. The controll…
Cooling a nanomechanical resonator with quantum back-action
A. Naik, O. Buu, M. D. LaHaye +4
Quantum mechanics demands that the act of measurement must affect the measured object. When a linear amplifier is used to continuously monitor the position of an object, the Heisen…