corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 105 » Issue 9
< Previous Article | Next Article >

Phys. Rev. Lett. 105, 090502 (2010) [4 pages]

Ultrafast Gates for Single Atomic Qubits

Download: PDF (457 kB) Buy this article Export: BibTeX or EndNote (RIS)

W. C. Campbell*, J. Mizrahi, Q. Quraishi, C. Senko, D. Hayes, D. Hucul, D. N. Matsukevich, P. Maunz, and C. Monroe
Joint Quantum Institute, University of Maryland Department of Physics and National Institute of Standards and Technology, College Park, Maryland 20742 USA

Received 22 May 2010; published 26 August 2010

We demonstrate single-qubit operations on a trapped atom hyperfine qubit using a single ultrafast pulse from a mode-locked laser. We shape the pulse from the laser and perform a π rotation of the qubit in less than 50 ps with a population transfer exceeding 99% and negligible effects from spontaneous emission or ac Stark shifts. The gate time is significantly shorter than the period of atomic motion in the trap (ΩRabi/νtrap>104), demonstrating that this interaction takes place deep within the strong excitation regime.

© 2010 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.105.090502
DOI:
10.1103/PhysRevLett.105.090502
PACS:
03.67.Lx, 37.10.Vz, 37.25.+k

*wes3000@umd.edu

 
< Previous Article | Next Article >