Creating multiparticle entanglement with optical fiber microcavities
Prof. Jakob Reichel, Laboratoire Kastler Brossel de l'E.N.S., UPMC, Institut Universitaire de France, Kirchhoff-Institut, INF 227 SR 1.403
CQD special colloquium
2. August 2017 14:00Konferenzraum 4, 01.106, Physikalisches Institut, INF 226
Dr. Adrian Kantian
Nordita, KTH Royal Institute of Technology and Stockholm University
In this talk I will discuss how experimentally available bilayer lattice systems could be used to prepare quantum many-body states with exceptionally low entropy in one layer, by dynamically disentangling the two layers. In regimes where all single particle excitations are gapped in one layer, disentangling maps directly to effective cooling of that layer, by shuttling entropy into the other layer. For both bosonic and fermionic atoms, we study the corresponding dynamics showing that disentangling can be realised cleanly in ongoing experiments. The corresponding entanglement entropies are directly measurable with quantum gas microscopes, and as a tool for producing lower-entropy states, this technique opens a range of applications beginning with simplifying production of magnetically ordered states of bosons and fermions.