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Q: Fachverband Quantenoptik und Photonik

Q 58: Quantum gases (Bosons) V

Q 58.5: Vortrag

Freitag, 13. März 2020, 12:15–12:30, e214

Crystalline droplets with emergent color-charge in multimode optical cavities — •Petr Karpov^1,2 and Francesco Piazza¹ — ¹Max Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, Dresden 01187, Germany — ²National University of Science and Technology “MISiS”, Moscow, Russia

In my talk I’ll describe a novel type of droplet which carries an emergent color-charge. The droplet exists in either a thermal gas regime or in a form of BEC, where the finite-range bounding interaction is provided by a multimode optical cavity. The sign-changing nature of the cavity-mediated interaction endows droplets with two types of charges (i.e. sublattices) governing their mutual interactions: attractive for equal colors and repulsive otherwise. The droplets are formed via first-order phase transition which gives an alternative route to the non mean-field type of self-organisation phase transitions proposed in [1]. The droplets represent a new type of effective mesa-“particles” showing a viscous glassy dynamics which can be non-destructively monitored by imaging the amplitude and the phase of the scattered light.

[1] S. Gopalakrishnan, B. Lev, and P. Goldbardt, Nat. Phys. 5, 845 (2009).