Title :
Realization of the Harper Hamiltonian with ultracold atoms in optical lattices
Author :
Miyake, Hirokazu ; Siviloglou, Georgios A. ; Kennedy, Colin J. ; Burton, William Cody ; Ketterle, Wolfgang
Author_Institution :
Dept. of Phys., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We experimentally realized the Harper Hamiltonian with charge neutral, ultracold atoms in optical lattices using laser-assisted tunneling and a potential energy gradient. The energy spectrum of this Hamiltonian is the fractal Hofstadter butterfly.
Keywords :
laser cooling; optical lattices; radiation pressure; Harper Hamiltonian; energy spectrum; fractal Hofstadter butterfly; laser assisted tunneling; optical lattices; potential energy gradient; ultracold atoms; Atom optics; Atomic beams; Hall effect; Laser beams; Lattices; Magnetic tunneling;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
