We propose a novel quantum cryptographic protocol without using polarized photons. The protocol consists of an optical coupler and four nonorthogonal coherent states which are analyzed by means of quadrature phase amplitudes of quantized light field.

We demonstrate a contradiction of quantum mechanics with local hidden variable theories for continuous variable quadrature phase amplitude (“position” and “momentum”) measurements, by way of a violation of a Bell inequality. For any quantum state, this contradiction is lost for situations where

Shared cryptographic bits via quantized quadrature phase amplitudes of light

structure encoded by multi-scale quadrature wavelets. The combinatorial complexity of this phase information across different persons spans about 244 degrees of freedom and gen-erates a discrimination entropy of about 3.2 bits/mm over the iris, enabling real-time decisions about per-sonal identity

the seasonal phases and amplitudes of ozone concentrations for different regions and altitudes, but tends to underestimate the seasonal amplitude at northern midlatitudes. Observed concentrations of NO and peroxyacetylnitrate (PAN) observed in aircraft campaigns are generally reproduced to within a factor of 2

coherence, PLS separates the phase and amplitude components and can be directly interpreted in the framework of neural integration. To validate synchrony values against background fluctuations, PLS uses surrogate data and thus makes no a priori assumptions on the nature of the experimental data. We also

Quantum cryptography using continuous variable Einstein-Podolsky-Rosen correlations and quadrature phase

refraction imaging in both amplitude and phase, and obtained an image with feature size, 0.77λ 0 .

for this paper are Binary Phase

proposal, Stagewise Orthogonal Matching Pursuit (StOMP), successively transforms the signal into a negligible residual. Starting with initial residual r0 = y, at the s-th stage it forms the ‘matched filter ’ Φ T rs−1, identifies all coordinates with amplitudes exceeding a specially-chosen threshold, solves