Lectures on Quantum Optics and Quantum Information
Lectures on Quantum Optics and Quantum Information
Lectures on Quantum Optics and Quantum Information
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
The Wigner Functi<strong>on</strong>: Functi<strong>on</strong>:<br />
Negativity<br />
(From A. Ourjoumtsev PhD Thesis)<br />
Wigner functi<strong>on</strong> of<br />
a single-phot<strong>on</strong><br />
The Wigner functi<strong>on</strong> is a quasi-probability<br />
distributi<strong>on</strong>: it can take negative values.<br />
Huds<strong>on</strong>-Piquet Theorem for pure state:<br />
Gaussian state Positive Wigner functi<strong>on</strong><br />
N<strong>on</strong>-Gaussian state Negative Wigner functi<strong>on</strong><br />
Negativity at the origin, W(0,0)
Change language