Events

Patryk Gumann, IQC

Abstract

Nuclear magnetic resonance (NMR) signal of phosphorus donors ($^{31}$P) in a single crystal of silicon, concentration 6 x 10$^{15}$ cc$^{-1}$ has been measured. The obtained polarization is larger than the expected thermal equilibrium polarization within the time scale of the experiment. A 13 sec build up time a probable nonequilibrium Overhauser mechanism, driven by 1047 nm light irradiation. This polarization is reached a temperature of 4.2 K and a magnetic field of 9.4 T.

Stacey Jefferey, Institute for Quantum Computing (IQC)

Abstract

Abstract to be announced.

Ken Brown, Georgia Technical Institute of Technology

Abstract

Joint Institute for Quantum Computing (IQC) Chemistry Seminar

Dr. Umesh Vazirani, University of California, Berkeley

Abstract

PLEASE NOTE THE NEW COLLOQUIUM TIME AND LOCATION IN QNC.

Is it possible to certify that the n-bit output of a physical random
number generator is "really random"? In the classical World this seems
impossible.

Dr. Alexey Kovaleve, University of California, Riverside

Borja Peropadre, Instituto de Fisica Fundamental

Dr. Graeme Smith, IBM TJ Watson Research Center

Michal Studzinski, Nicolaus Copernicus University

Eduardo Martin-Martinez, Institute for Quantum Computing (IQC)

Abstract

We show that particle detectors, such as 2-level atoms, in non-inertial motion (or in gravitational fields) could be used to build quantum gates for the processing of quantum information. Concretely, we show that through suitably chosen non-inertial trajectories of the detectors the interaction Hamiltonian's time dependence can be modulated to yield arbitrary rotations in the Bloch sphere due to relativistic quantum effects.