Coherence

Coherence

John Bartholomew talks about quantum memories and the challenges of keeping quantum information "coherent".

John explores the limit of how long quantum information can be stored - a "quantum memory" is an important part of quantum information technologies. He was part of a team that set the record for this "coherence time" of about 6 hours (using super-cold glowing crystals). This might seem short compared to classical hard drives, but its excitingly long enough to imagine building a quantum sneaker-net. In fact this idea of coherence gets at the boundary between quantum and classical! John shares his own journey from a small country town to a commute within view of the Eiffel Tower in Paris, and the super-fridges from Episode 1 make a reappearance.

Have you ever wanted a quantum USB adapter? Subscribe and share with your friends. We'd love to hear your quantum questions - send them to engage@equs.org and we'll try to answer them in future episodes!

Episoder(20)

Secrets of the universe are shaping our future

Secrets of the universe are shaping our future

Dr Danni Holmes uses a special single-atom gun to implant “donor” atoms into silicon chips for quantum technology. Working at atomic scales has its challenges — even a sneeze in a cleanroom can derail...

30 Jun 202535min

Your quantum future

Your quantum future

Dr Sol H. Jacobsen explores the fascinating world of spintronics — a field where quantum science already meets real-world applications. Sol is about to tour Australia for the Marie Curie Lectures as p...

30 Jun 202536min

Quantum printer

Quantum printer

Ever wondered how the tiny processors in your phone or laptop are made? It all comes down to an ancient idea—writing on stone—taken to the most extreme level imaginable. Elliot Cheng is a Specialist E...

11 Apr 202529min

Live - Celebrating quantum Ig Nobility

Live - Celebrating quantum Ig Nobility

We present the inaugural, ultimate, and grand final EQUS Ig Nobel Prize!EQUS is coming towards an end, and there's plenty of Type 1 success to celebrate. But that is for another place, because the sto...

13 Des 202422min

Roadtripping a quantum skipping rope

Roadtripping a quantum skipping rope

This special episode recounts adventures from the 2024 National Quantum and Dark Matter Roadtrip - a science journey of more than 8000km across Australia! The roadtrip has become a significant annual ...

5 Sep 202429min

Quantum torch

Quantum torch

Lasers are everywhere, and David Coutts helps us explore some of the quantum ideas behind these amazing light sources.David is a professor at Macquarie University and has worked with numerous exciting...

9 Aug 202432min

Quantum toaster

Quantum toaster

Karen Livesey talks about the quantum side of hot glowing things, revealing that quantum has been ubiquitous since the dawn of time. Karen is an Associate Professor at the University of Newcastle and ...

2 Aug 202431min

Live - Disentangling quantumified shoelaces

Live - Disentangling quantumified shoelaces

In this live podcast event, we switch up our theme for Season 2 (coming soon) to talk about things that loudly claim to be quantum—but are they?  Marketing gurus are alert to the appeal of "quantum", ...

13 Des 202337min

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