[Isac-journal-club] Next week's snack club's paper (Dec 7)

journalclub journalclub at triumf.ca
Fri Dec 2 15:50:49 PST 2016


WEDNESDAY DECEMBER 7TH  MOB THEORY ROOM
​Does anyone know where we can buy some good mince pies?​

​We've got an interesting one for you this week:
http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.052330

Presented by the greasy (GRSI) coop students, we have a paper that
discusses measurement of magnetic fields using physics that spans several
disciplines.

There is some basic physics for students at the start and some confusing
jargon for angry old people at the end. Hopefully we can get enough people
with different expertise together to understand the paper by the end of the
discussion.

The paper is attached, along with a nature communication which might help
dumb down the important parts.

Here are some questions to lead our reading and discussion:

What is a quibit?

What's an NV centre?

What are fine and hyperfine splitting?

How do they use an optical laser to measure the magnetic field in the
method in section 2?

What do they mean by, “rotating spins with microwaves”?

How do the nuclear and elctron spins affect each other?

Why does the nuclear spin have a longer coherence time than the electron
spin?

What are the C-Not and SWAP gates? And how are they applied?

What do they mean by flip flops between electron spin and nuclear spin?

Why do we care about being able to measure such small magnetic fields?
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