Nonclassical polarization states

Generation of highly nonclassical n-photon polarization states by superbunching at a photon bottleneck

It is shown that coherent superpositions of two oppositely polarized n-photon states can be created by postselecting the transmission of n independently generated photons into a single-mode transmission line. It is thus possible to generate highly nonclassical n-photon polarization states using only the bunching effects associated with the bosonic nature of photons. The effects of mode-matching...

Highly Nonclassical Quantum States and Environment Induced Decoherence Highly Nonclassical Quantum States and Environment Induced Decoherence

Hypergeometric States and Their Nonclassical Properties

Hypergeometric states’, which are a one-parameter generalization of binomial states of the single-mode quantized radiation field, are introduced and their nonclassical properties are investigated. Their limits to the binomial states and to the coherent and number states are studied. The ladder operator formulation of the hypergeometric states is found and the algebra involved turns out to be a ...

Quantum Communication with Correlated Nonclassical States

Nonclassical correlations between the quadrature-phase amplitudes of two spatially separated optical beams are exploited to realize a two-channel quantum communication experiment with a high degree of immunity to interception. For this scheme, either channel alone can have an arbitrarily small signal-to-noise ratio (SNR) for transmission of a coherent “message”. However, when the transmitted be...

Generating nonclassical quantum input field states with modulating filters

*Correspondence: [email protected] 1Department of Physics, Aberystwyth University, Aberystwyth, Wales SY23 2BZ, UK Full list of author information is available at the end of the article Abstract We give explicit constructions of quantum dynamical filters which generate nonclassical states (coherent states, cat states, shaped single and multi-photon states) of quantum optical fields as inputs to ge...