Thermo-responsive photonic Josephson junction

Mario Vretenar, Ben Kassenberg, Shivan Bissesar, Chris Toebes, Jan Andre Klärs

Research output: Contribution to conferencePosterAcademic


Josephson junctions are the basis for many important fields, such as ultrafast electronics with magnetic flux quanta and superconducting quantum computing. The physical predictions of Josephson junctions are highly universal and can be observed in systems as diverse as coupled superconductors, atomic Bose-Einstein condensates, and others. We experimentally demonstrate tunable tunneling between two photon Bose-Einstein condensates by a targeted shaping of the potential landscape acting on the photons during the tunneling process. The investigated device realizes an optical analogue of a 0,π-Josephson junction, which can act as a building block for an ultrafast all-optical spin glass simulator. The potential landscape in our photon Bose-Einstein condensate Josephson junctions is realized by a combination of direct laser writing for permanent mirror nanostructuring, and heating a thermosensitive polymer for runtime fine tuning of couplings.
Original languageEnglish
Publication statusPublished - 10 Dec 2020
EventCondensates of Light 2020 - Online Workshop
Duration: 9 Dec 202011 Dec 2020


WorkshopCondensates of Light 2020
CityOnline Workshop
Internet address


Dive into the research topics of 'Thermo-responsive photonic Josephson junction'. Together they form a unique fingerprint.

Cite this