6533b7d4fe1ef96bd12633a1
RESEARCH PRODUCT
Collisional picture of quantum optics with giant emitters
G. Massimo PalmaG. Massimo PalmaAngelo CarolloDario CilluffoDario CilluffoFrancesco CiccarelloFrancesco CiccarelloJonathan A. GrossSalvatore Lorenzosubject
PhysicsQuantum opticsQuantum PhysicsWaveguide quantum optics giant atoms collisional modelFOS: Physical sciences01 natural sciences010305 fluids & plasmasQuantum mechanics0103 physical sciencesPhysics::Accelerator PhysicsMathematics::Metric GeometryQuantum Physics (quant-ph)Nuclear Experiment010306 general physicsdescription
The effective description of the weak interaction between an emitter and a bosonic field as a sequence of two-body collisions provides a simple intuitive picture compared to traditional quantum optics methods as well as an effective calculation tool of the joint emitter-field dynamics. Here, this collisional approach is extended to many emitters (atoms or resonators), each generally interacting with the field at many coupling points ("giant" emitter). In the regime of negligible delays, the unitary describing each collision in particular features a contribution of a chiral origin resulting in an effective Hamiltonian. The picture is applied to derive a Lindblad master equation (ME) of a set of giant atoms coupled to a (generally chiral) waveguide field in an arbitrary white-noise Gaussian state, which condenses into a single equation and extends a variety of quantum optics and waveguide-QED MEs. The effective Hamiltonian and jump operators corresponding to a selected photodetection scheme are also worked out.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 | Physical Review Research |