Quantum states of light and nanophotonics

Darrick E. Chang

Alejandro González-Tudela, Andreas Reiserer, Juan José García‐Ripoll +1 more

Akira Furusawa

Liat Nemirovsky-Levy, Amit Kam, Meir Lederman +4 more

Quantum nanophotonics merges the precision of nanoscale light manipulation with the capabilities of quantum technologies, offering a pathway for enhanced light-matter interaction and compact realization of quantum devices. Here, we show how a recently-demonstrated nonlinear nanophotonic process can be employed to selectively create photonic high-dimensional quantum states (qudits). We utilize the nonlinearity on the surface of the nanophotonic device to dress, through the polarization of the pump field, the near-field modes carrying angular momentum and their superpositions. This idea is an important step towards experimental realizations of quantum state generation and manipulation through nonlinearity within nanophotonic platforms, and enables new capabilities for on-chip quantum devices.

David F. P. Pile

Marcelo Davanço

Nanophotonics is enabling for photonic quantum technologies, providing means to effectively control light-matter interactions on chip. This talk will describe the use of nanophotonics for the creation of efficient and versatile chip-based quantum light sources.