Atom interferometry with quantized light pulses
- URL: http://arxiv.org/abs/2105.00814v2
- Date: Thu, 22 Feb 2024 16:24:43 GMT
- Title: Atom interferometry with quantized light pulses
- Authors: Katharina Soukup, Fabio Di Pumpo, Tobias Asano, Wolfgang P. Schleich
and Enno Giese
- Abstract summary: We show that the interference signal of an atom interferometer with light-pulse beam splitters and mirrors in intense coherent states does approach the limit of classical fields.
Low photon numbers reveal the granular structure of light, leading to a reduced visibility since Welcher-Weg information is encoded into the field.
- Score: 0.19564492882602116
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The far-field patterns of atoms diffracted from a classical light field, or
from a quantum one in a photon-number state are identical. On the other hand,
diffraction from a field in a coherent state, which shares many properties with
classical light, displays a completely different behavior. We show that in
contrast to the diffraction patterns, the interference signal of an atom
interferometer with light-pulse beam splitters and mirrors in intense coherent
states does approach the limit of classical fields. However, low photon numbers
reveal the granular structure of light, leading to a reduced visibility since
Welcher-Weg (which-way) information is encoded into the field. We discuss this
effect for a single photon-number state as well as a superposition of two such
states.
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