9,763 research outputs found
Generation of higher order nonclassical states via interaction of intense electromagnetic field with third order nonlinear medium
Interaction of intense laser beam with an inversion symmetric third order
nonlinear medium is modeled as a quartic anharmonic oscillator. A first order
operator solution of the model Hamiltonian is used to study the possibilities
of generation of higher order nonclassical states. It is found that the higher
order squeezed and higher order antibunched states can be produced by this
interaction. It is also shown that the higher order nonclassical states may
appear separately, i.e. a higher order antibunched state is not essentially
higher order squeezed state and vice versa.Comment: 7 pages, no figur
Large Margin Multiclass Gaussian Classification with Differential Privacy
As increasing amounts of sensitive personal information is aggregated into
data repositories, it has become important to develop mechanisms for processing
the data without revealing information about individual data instances. The
differential privacy model provides a framework for the development and
theoretical analysis of such mechanisms. In this paper, we propose an algorithm
for learning a discriminatively trained multi-class Gaussian classifier that
satisfies differential privacy using a large margin loss function with a
perturbed regularization term. We present a theoretical upper bound on the
excess risk of the classifier introduced by the perturbation.Comment: 14 page
Non-destructive Orthonormal State Discrimination
We provide explicit quantum circuits for the non-destructive deterministic
discrimination of Bell states in the Hilbert space , where is
qudit dimension. We discuss a method for generalizing this to non-destructive
measurements on any set of orthogonal states distributed among parties.
From the practical viewpoint, we show that such non-destructive measurements
can help lower quantum communication complexity under certain conditions.Comment: 11 pages, 6 fugure
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