<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">WEDNESDAY DECEMBER 7TH  MOB THEORY ROOM</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">​Does anyone know where we can buy some good mince pies?​<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">​We've got an interesting one for you this week:</div><div class="gmail_default"><font face="arial, helvetica, sans-serif"><a href="http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.052330">http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.052330</a></font></div><div class="gmail_default"><br><font face="arial, helvetica, sans-serif">Presented by the greasy (GRSI) coop students, we have a paper that discusses measurement of magnetic fields using physics that spans several disciplines.</font><br><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br>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.</div><div style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><font face="arial, helvetica, sans-serif">The paper is attached, along with a nature communication which might help dumb down the important parts.</font></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Here are some questions to lead our reading and discussion:<br></div><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">What is a quibit?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">What's an NV centre?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">What are fine and hyperfine splitting?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">How do they use an optical laser to measure the magnetic field in the method in section 2?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px"><span style="font-size:12.8px;line-height:12.8px">What do they mean by, “rotating spins with microwaves”?</span></p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px"><span style="font-size:12.8px;line-height:12.8px">How do the nuclear and elctron spins affect each other?</span></p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px"><span style="font-size:12.8px;line-height:12.8px">Why does the nuclear spin have a longer coherence time than the electron spin?</span></p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">What are the C-Not and SWAP gates? And how are they applied?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px">What do they mean by flip flops between electron spin and nuclear spin?</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px"><span style="font-size:12.8px;line-height:12.8px">Why do we care about being able to measure such small magnetic fields?</span></p></div></blockquote><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><p style="font-family:arial,sans-serif;font-size:12.8px;margin-bottom:0in;line-height:12.8px"><span style="font-size:12.8px;line-height:12.8px"></span></p></div></div>