Breaking the rotating wave approximation for a strongly driven dressed single-electron spin

Laucht, A; Simmons, S; Kalra, R; Tosi, G; Dehollain, JP; Muhonen, JT; Freer, S; Hudson, FE; Itoh, KM; Jamieson, DN; McCallum, JC; Dzurak, AS; Morello, A

Breaking the rotating wave approximation for a strongly driven dressed single-electron spin

Laucht, A Simmons, S Kalra, R Tosi, G Dehollain, JP Muhonen, JT Freer, S Hudson, FE Itoh, KM Jamieson, DN McCallum, JC Dzurak, AS Morello, A

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Publisher:: AMER PHYSICAL SOC
Publication Type:: Journal Article
Citation:: Physical Review B, 2016, 94, (16)
Issue Date:: 2016-10-17

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Field	Value	Language
dc.contributor.author	Laucht, A
dc.contributor.author	Simmons, S
dc.contributor.author	Kalra, R
dc.contributor.author	Tosi, G
dc.contributor.author	Dehollain, JP
dc.contributor.author	Muhonen, JT
dc.contributor.author	Freer, S
dc.contributor.author	Hudson, FE
dc.contributor.author	Itoh, KM
dc.contributor.author	Jamieson, DN
dc.contributor.author	McCallum, JC
dc.contributor.author	Dzurak, AS
dc.contributor.author	Morello, A
dc.date.accessioned	2022-08-10T22:43:26Z
dc.date.available	2022-08-10T22:43:26Z
dc.date.issued	2016-10-17
dc.identifier.citation	Physical Review B, 2016, 94, (16)
dc.identifier.issn	2469-9950
dc.identifier.issn	2469-9969
dc.identifier.uri	http://hdl.handle.net/10453/159863
dc.description.abstract	We investigate the dynamics of a strongly driven microwave-dressed donor-bound electron spin qubit in silicon. A resonant oscillating magnetic field B1 is used to dress the electron spin and create a new quantum system with a level splitting proportional to B1. The dressed two-level system can then be driven by modulating the detuning Δν between the microwave source frequency νMW and the electron spin transition frequency νe at the frequency of the level splitting. The resulting dressed qubit Rabi frequency ΩRρ is defined by the modulation amplitude, which can be made comparable to the level splitting using frequency modulation on the microwave source. This allows us to investigate the regime where the rotating wave approximation breaks down without requiring microwave power levels that would be incompatible with a cryogenic environment. We observe clear deviations from normal Rabi oscillations and can numerically simulate the time evolution of the states in excellent agreement with the experimental data.
dc.language	English
dc.publisher	AMER PHYSICAL SOC
dc.relation.ispartof	Physical Review B
dc.relation.isbasedon	10.1103/PhysRevB.94.161302
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Fluids & Plasmas
dc.title	Breaking the rotating wave approximation for a strongly driven dressed single-electron spin
dc.type	Journal Article
utslib.citation.volume	94
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-10T22:43:24Z
pubs.issue	16
pubs.publication-status	Published
pubs.volume	94
utslib.citation.issue	16

Abstract:

We investigate the dynamics of a strongly driven microwave-dressed donor-bound electron spin qubit in silicon. A resonant oscillating magnetic field B1 is used to dress the electron spin and create a new quantum system with a level splitting proportional to B1. The dressed two-level system can then be driven by modulating the detuning Δν between the microwave source frequency νMW and the electron spin transition frequency νe at the frequency of the level splitting. The resulting dressed qubit Rabi frequency ΩRρ is defined by the modulation amplitude, which can be made comparable to the level splitting using frequency modulation on the microwave source. This allows us to investigate the regime where the rotating wave approximation breaks down without requiring microwave power levels that would be incompatible with a cryogenic environment. We observe clear deviations from normal Rabi oscillations and can numerically simulate the time evolution of the states in excellent agreement with the experimental data.

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http://hdl.handle.net/10453/159863