Accession Number:

AD1096435

Title:

Cold Rydberg Atoms: Few Body Effects and High Order Interaction

Descriptive Note:

Technical Report,15 Sep 2016,14 Sep 2019

Corporate Author:

Instituto De Fisica De Sao Carlos Sao Carlos Brazil

Personal Author(s):

• Marcassa,Luis

Report Date:

2019-10-07

Pagination or Media Count:

11.0

Abstract:

In this report, we have focused our attention to the lifetime measurements involving nS and nD states, which were presented in theprevious report. We have observed that there was a discrepancy between theory and experiment performed at T300 K. We havedeveloped a theoretical model, which considers the finite size of the vacuum chamber. Such effect modifies thespectrum of the blackbody theory, reducing its influence, and therefore increasing the lifetime. Such observation may be importantwhere a larger lifetime is desired, but the use of cryogenic techniques is not possible. We have also investigated the excitation ofRydberg states using Laguerre-Gauss laser beams in dipole prohibited transition. In particular, we are interestedin transitions from the 5P32 to the nP Rydberg state. We believe that we could not observed them due to the low densityvolume ofthe sample.

Descriptors:

• department of defense
• atoms
• chambers
• excitation
• lasers
• measurement
• physics
• reflectivity
• transitions
• universities
• vacuum
• frequency
• low density
• quantum computing
• rydberg atoms
• electric fields
• experimental data
• optical tweezers
• laser beams
• vacuum chambers

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE