@article{bibcite_7264,
  author = {P. T. Greenland and S. A. Lynch and A. F. G. van der Meer and B. N. Murdin and C. R. Pidgeon and B. Redlich and N. Q. Vinh and G. Aeppli},
  title = {Coherent control of Rydberg states in silicon},
  abstract = {Laser cooling and electromagnetic traps have led to a revolution in atomic physics, yielding dramatic discoveries ranging from Bose-Einstein condensation to the quantum control of single atoms(1). Of particular interest, because they can be used in the quantum control of one atom by another, are excited Rydberg states(2-4), where wavefunctions are expanded from their ground-state extents of less than 0.1 nm to several nanometres and even beyond; this allows atoms far enough apart to be non-interacting in their ground states to strongly interact in their excited states. For eventual application of such states(5), a solid-state implementation is very desirable. Here we demonstrate the coherent control of impurity wavefunctions in the most ubiquitous donor in a semiconductor, namely phosphorus-doped silicon. In our experiments, we use a free-electron laser to stimulate and observe photon echoes(6,7), the orbital analogue of the Hahn spin echo(8), and Rabi oscillations familiar from magnetic resonance spectroscopy. As well as extending atomic physicists{\textquoteright} explorations(1-3,9) of quantum phenomena to the solid state, our work adds coherent terahertz radiation, as a particularly precise regulator of orbitals in solids, to the list of controls, such as pressure and chemical composition, already familiar to materials scientists(10).},
  year = {2010},
  journal = {Nature},
  volume = {465},
  number = {7301},
  pages = {1057-U116},
  month = {06/2010},
  isbn = {0028-0836},
  url = {<Go to ISI>://000279056900048 },
  note = {ISI Document Delivery No.: 614KITimes Cited: 0Cited Reference Count: 24},
  language = {English},
}