Guillaume Thekkadath

Quantum physicist. Interested in light.

[NRC Canada @NRC_CNRC]

1/2: #NRCQuantum’s Dr. Guillaume Thekkadath and his colleagues, with the help of their theoretical collaborators at @polymtl, discovered a delay between entangled photons in their most recent paper in @PhysRevLett. https://t.co/odjqCrMha4

[Nicolás Quesada 🦣 @polyquantique]

🚨🚨 New work with @NRC_CNRC on high-gain SPDC. https://t.co/9TCefzwlbj
We investigate a gain-induced group delay in SPDC, which is an elegant manifestation of so-called time-ordering corrections in the joint spectral amp. of the squeezed light generated by a pump on a crystal.

[Guillaume Thekkadath @GThekkadath]

Our paper on quantum-inspired holography is now published https://t.co/u43J17gVxU , just a few days after Canada day🍁

[NRC Canada @NRC_CNRC]

#NRCQuantum scientists demonstrated a new vibration-resilient holography technique in the apparatus that can be used to generate #holograms of self-luminous objects. Their paper is published in the July issue of @ScienceAdvances. https://t.co/vskyKY83qo @NSERC_CRSNG

[Guillaume Thekkadath @GThekkadath]

Yesterday I had the pleasure to visit the @polyquantique and @femtoQ groups at Polytechnique Montreal. They're doing exciting work in quantum optics. Thanks for the invite Nico and @RQMP6. Here's a video of my seminar https://t.co/gyaS3yCc3n

[Guillaume Thekkadath @GThekkadath]

I really enjoyed attending the #CQIQCIX conference. My talk is available online: https://t.co/fEdyH828lK Skip to 23:53 to see very recent quantum imaging results

[PRX Quantum @PRX_Quantum]

A crucial step for building a Gaussian boson sampling machine is demonstrated: A squeezed state is displaced in phase-space and the sampling complexity is fully investigated. @GThekkadath @Ssempere1 @Imp_Prov @ImperialPhysics

https://t.co/J3f0ofqYjW

[Guillaume Thekkadath @GThekkadath]

A new paper! You might already know how to measure the joint spectral amplitude (JSA) of your photon pair source. But with the help of an attenuated laser, you can measure their joint spectral phase too! https://t.co/wvDsC3Atx8

[Guillaume Thekkadath @GThekkadath]

@LundeenOttawa Good point. What about the wikipedia definition: "The mode of electromagnetic radiation describes the field pattern of the propagating waves". By this definition, we get rid of static and evanescent fields

[Guillaume Thekkadath @GThekkadath]

@LundeenOttawa I'm tempted to answer "yes they're modes", but I have a feeling that you know of some issues this answer raises that I can't think of!

[Guillaume Thekkadath @GThekkadath]

@LundeenOttawa @QuantumAephraim I'm guessing you already know about variable fiber beam splitters like this one: https://t.co/F94y2AIoOj The interferometer is in the blackbox. I used one of these during my PhD.

[Guillaume Thekkadath @GThekkadath]

@LundeenOttawa You can setup the EOM to get modulation in your phase shift in the cw case, though I guess it may not be ideal: https://t.co/o5AoC2ziPv

[Guillaume Thekkadath @GThekkadath]

Just finished presenting our recent work using photon counting for quantum state engineering and interferometery: https://t.co/mDiAyzVlZS Thanks to the University of Warsaw for hosting. Hope I can visit @StobinskaQCAT and all the other great research groups in Warsaw soon.

[Quantum Measurement Lab @QMeasLab]

Guillaume Thekkadath from the Walmsley group (@Imp_Prov) gives our online group seminar on his work on quantum photonics with superconducting transition-edge sensors. Great work Guillaume, congratulations completing your PhD, and many thanks for joining us!

[Magda Stobińska QCAT @StobinskaQCAT]

Our paper "Quantum-enhanced interferometry with large heralded photon-number states" is published in @Nature_NPJ #Quantum Information with Guillaume Thekkadath and Monika Mycroft as the first authors. Congrats! https://t.co/d13dxGaf9Z @UniWarszawski @FNP_org_pl @OxfordPhysics