7 papers · 1 filter
Thermal-difference states of light: quantum states of heralded photons
D. B. Horoshko, S. De Bièvre, G. Patera +1
We introduce the thermal-difference states (TDS), a three-parameter family of single-mode non-Gaussian bosonic states whose density operator is a weighted difference of two thermal…
Quantum teleportation of qudits by means of generalized quasi-Bell states of light
D. B. Horoshko, G. Patera, M. I. Kolobov
Quantum superpositions of coherent states are produced both in microwave and optical domains, and are considered realizations of the famous "Schrödinger cat" state. The recent prog…
Measuring nonclassicality of bosonic field quantum states via operator ordering sensitivity
Stephan De Bievre, Dmitri B. Horoshko, Giuseppe Patera +1
We introduce a new distance-based measure for the nonclassicality of the states of a bosonic field, which outperforms the existing such measures in several ways. We define for that…
Bloch-Messiah decomposition and Magnus expansion for parametric down-conversion with monochromatic pump
Tobias Lipfert, Dmitri Horoshko, Giuseppe Patera +1
We discuss the Bloch-Messiah decomposition for the broadband squeezed light generated by type-I parametric down-conversion with monochromatic pump. Using an exact solution for this…
Space-time duality and quantum temporal imaging
Giuseppe Patera, Dmitri Horoshko, Mikhail Kolobov
Using the space-time analogy, we compare the performance of quantum temporal imaging with its classical counterpart. We consider a temporal imaging scheme, based on the sum-frequen…
Entanglement of quantum circular states of light
D. B. Horoshko, S. De Bièvre, M. I. Kolobov +1
We present a general approach to calculating the entanglement of formation for superpositions of two-mode coherent states, placed equidistantly on a circle in the phase space. We s…