Quantum wave mixing and resolving photonic classical and non-classical coherent states

2^nd International Conference on Quantum Physics and Quantum Technology

September 25-26, 2017 Berlin, Germany

Vladimir N Antonov

Royal Holloway University of London, UK
Moscow Institute of Physics and Technology, Russia

Scientific Tracks Abstracts: J Laser Opt Photonics

Abstract :

Superconducting quantum systems- artificial atoms are building blocks of novel on-chip quantum electronics, which utilize the quantum nature of electromagnetic waves. Particularly, single atoms can create and reveal quantized light states beyond classical statistics. In this work we demonstrate a novel fundamental physical phenomenon, the Quantum Wave Mixing (QWM), which is attainable only in the systems where light-matter interaction is arranged between an individual photons and a single atom. QWM reveals itself as an elastic scattering of coherent classical and non-classical photonic states of electromagnetic waves on a single artificial atom in a 1D space. We demonstrate two regimes of QWM, comprising different degrees of �quantumness". The most spectacular one is QWM with non-classical coherent states, exhibiting spectra of a finite number of narrow coherent emission peaks. The spectrum is a fingerprint of interacting photon states, where the number of positive frequency peaks (due to stimulated emission) always exceeds by one the negative ones (due to absorption). We also study four- and higher-order wave mixing of classical coherent waves on the artificial atom. In this case the time dynamics of the peaks exhibits a series of Bessel-function quantum oscillations with orders determined by the number of interacting photons.

Biography :

Vladimir N Antonov has his expertise in Solid State Nanophysics. He is one of scientists who made a breakthrough in experiments on quantum phenomena in low dimensional hybrid nanostructures, like Andreev interferometer, ferromagnetic/superconducting systems. A single photon terahertz detector based on semiconductors quantum dot developed in collaboration with Profs. Komiyama and Astafiev keeps a record sensitivity and it is used in a number of applications. A recent activity in superconducting quantum circuitry, superconducting resonators of high quality factors, and nanomagnetics is a subject of a number of publications in high ranked journals. He is also involved in development of the technology of high power diode laser for communications as an expert in nanofabrication.