PhD candidate in quantum info @ARC_EQUS @SydneyQuantum. BSc & MSc in quantum optics @unipb. She/her
Sydney, Australia
Joined December 2019
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This road trip through Australia for #quantum and #darkmatter outreach was an absolutely outstanding experience – thanks @ARC_EQUS !
Thank you to all of the universities who supported our epic #QDMroadtrip.
It was an honour to talk #quantum and #darkmatter science with communities and schools across Australia.
@UniMelb @Swinburne @ourANU @Macquarie_Uni @UQscience @Sydney_Uni @ScienceUWA @UniofAdelaide
The PhD scholarship round 2022 @SydneyQuantum is now open! Come join us: macq.it/3nPjOsn #quantum @MQSciEng
"It is really inspiring to see the entirely odd behavior of quantum particles on a very fundamental level," PhD student Elisabeth Wagner, winner of the SQA Scholarship on studying #quantum.
Apply now for the 2021 @SydneyQuantum PHD #scholarship: macq.it/3nPjOsn
#STEM
Elisabeth Wagner retweeted
What a ride it has been!
✅ 7,000km
✅ 40 towns and cities
✅ 25 schools
We had a ball spreading the word about #quantum and #darkmatter science across Australia.
Thank you @Aus_ScienceWeek and all the schools and communities that welcomed us.
@ARC_EQUS @ARC_DMPP @arc_gov_au
@rdviii Thanks! Was an honour meeting you in-person. Hope you have had a nice evening in Munich and flight back. All the best
In the end the four-wave-mixing process generates polarization-entangled signal and idler photons that are then just coupled to photons with non-zero OAM without change of polarization.
However, the coupling strength of these spin-orbit coupling processes with changing spin/polarization is very weak and are not considered.
This means that in principle, say, a left-circularly polarized photon with zero OAM could indeed couple to a right-circularly polarized photon with non-zero OAM without such a helical grating as the total angular momentum of the process would be conserved.
In general, only the total angular momentum (= orbital angular momentum (OAM) + spin angular momentum) of the process needs to be conserved, where in this case the spin is referred to as the polarization as we are dealing with photons.
Yes! The trick is that the photons exhibit (depending on the grating) different vortex states, but are entangled in their polarization degree of freedom – not in their orbital angular momentum states.
Hope this answers your question!
Entangling photons – with a twist! Have a look at the nonlinear generation of a special kind of optical waveguide modes
@MikolajKSchmidt @magneticlemur @unipb @MQPhysAstro @dfg_public @PhotonicsMeetup #POM20ju #POM20LM #quantumoptics
