Naslov
Weyl Points in Three-Dimensional Optical Lattices: Synthetic Magnetic Monopoles in Momentum Space

Autori
Dubček, Tena ; Kennedy, Colin J. ; Lu, Ling ; Ketterle, Wolfgang ; Soljačić, Marin ; Buljan, Hrvoje

Izvornik
Physical Review Letters (0031-9007) 114 (2015); 225301-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, pismo, znanstveni

Ključne riječi
Weyl fermions; Weyl points; optical lattices; synthetic magnetism; ultracold atoms

Sažetak
We show that a Hamiltonian with Weyl points can be realized for ultracold atoms using laser- assisted tunneling in three-dimensional optical lattices. Weyl points are synthetic magnetic monopoles that exhibit a robust, three- dimensional linear dispersion, identical to the energy-momentum relation for relativistic Weyl fermions, which are not yet discovered in particle physics. Weyl semimetals are a promising new avenue in condensed matter physics due to their unusual properties such as the topologically protected “Fermi arc” surface states. However, experiments on Weyl points are highly elusive. We show that this elusive goal is well within experimental reach with an extension of techniques recently used in ultracold gases.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Rad je kao poster prezentiran na skupovima: - "Young Atom Opticians Conference", održanom od 18.-28.04.2015.g., Zürich, Švicarska. - "European Summer School 2015 : Light!", održanom 05.-12.07.2015.g., Strasbourg, Francuska. - Workshop on topological effects and synthetic : gauge fields for atoms and photons, odranom od 29.09.-01.10.2015.g., Zagreb, Hrvatska i - Simpozij doktoranada Prirodoslovno matematičkog fakzlteta u Zagrebu, održanom 26.02.2016.g., Zagreb, Hrvatska ; svi objavljeni u Knjigama sazetaka s pojedinih skupova.

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