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SUMMARY:Experimental investigations of the resonant dipole-dipole interact
 ion between cold Rydberg atoms - Antoine Browaeys (Institut d'Optique\, Fr
 ance)
DTSTART:20150302T153000Z
DTEND:20150302T170000Z
UID:TALK57883@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:This talk will present our on-going effort to control the dipo
 le-dipole interaction between cold Rydberg atoms. In our experiment\, we t
 rap individual atoms in two-dimensional arrays of optical tweezers separat
 ed by few micrometers and excite them to Rydberg states using lasers. The 
 arrays are produced by a spatial light modulator\, which shapes the dipole
  trap beam. We can create almost arbitrary geometries of the arrays. \nWe 
 have measured the van der Waals interaction between two individual atoms\,
  and show efficient Rydberg blockade in arrays of three atoms. We have als
 o demonstrated the control of the interaction between atoms with microwave
  and DC electric fields. We observe in particular the coherent energy exch
 ange between two atoms resulting from their dipole-dipole interaction. Thi
 s control of the interaction will find applications in quantum state engin
 eering\, quantum information and quantum simulation. \n
LOCATION:Rutherford building\, Seminar Room B
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