BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:From quantum tunneling in a topology-changing fermionic bath to to
 pological quantum superpositions - Jan Behrends\, Cavendish Laboratory
DTSTART:20220210T130000Z
DTEND:20220210T140000Z
UID:TALK169511@talks.cam.ac.uk
CONTACT:Laura Pellegrini
DESCRIPTION:Quantum particles are able to tunnel through a potential barri
 er: Due to their probabilistic nature\, they may pass through classically 
 impenetrable barriers\, even at zero temperature. This can also be achieve
 d in macroscopic systems\, for example in superconducting Josephson juncti
 ons\, where dissipation modifies the tunneling without prohibiting it. In 
 this talk\, I will introduce a topological planar Josephson junction\, whe
 re quantum tunneling connects topologically distinct regions. I will expla
 in what topological systems are and how they can be promoted by tunneling 
 processes\, with resulting states being superpositions of topologically tr
 ivial and non-trivial states — Schrödinger’s cat in macroscopic syste
 ms.
LOCATION:King Richard Room\, Darwin College
END:VEVENT
END:VCALENDAR