nitrogen-vacancy centers - 2023 Chicago Open

Question

The ground state and excited state of these defects are both triplets, and the strength of the decays through intermediate singlets varies depending on the spin. For 10 points each:

[10m] Name these point defects. The long coherence time of these defects makes them useful for constructing qubits by repeatedly exciting them with 532 nanometer green laser light and allowing them to decay in order to “initialize” the spin state.

ANSWER: nitrogen-vacancy centers [or NV centers; accept NV-minus centers or NV0 centers; prompt on partial answer]

[10h] Cooling a nitrogen-vacancy center allows increased resolution of this spectral line, which is analogous to the Mössbauer line. The Franck–Condon principle gives the frequency gap between this line and the peak of a related sideband.

ANSWER: zero-phonon line [or ZPL]

[10e] Nitrogen-vacancy centers are found in this material. Extremely high pressures can be created using anvil cells that use this material.

ANSWER: diamond [accept diamond anvil cells; prompt on carbon]

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Summary


2023 Chicago Open	08/05/2023	Y	10	15.00	100%	50%	0%

Data


The Plague (anime)" was redirected to: "Oran High School Host Club	BHSU	10	10	20
Hang et al., Robert Browning	Don't be Afraid, the Clown's Afraid Too	0	10	10
Evans Hall destruction awaiters	I prefer really not to speak. If I speak I’m in big trouble	0	10	10
In Search of Things Past	I would prefer not to	10	10	20
Quasicrystal Silence	[moderator voice] yes that is so tenpointscore! is your team feeling bonuspilled?	0	10	10
remembrance of lost time	Teach Us to Outgrow Our Ladness	0	10	10
Curse you, Periplus the Platypus!	Romanos IV Diogenes’ Macaroni Grill	10	10	20
Team Name Think Detail	Saint Peter Andre 3000	0	10	10
The Catastrophic Implosion of Packet Sub	The anti-STOON-dahl cabal (the tall Keyal et al.)	10	10	20
wave2: trimming membership codes 9655377758gp	The Canadians	10	10	20