385 citations · 805 across the 10 of their papers we have counts for
10 papers
Spectral Crossovers and Universality in Quantum Spin-chains Coupled to Random Fields
Debojyoti Kundu, Santosh Kumar, Subhra Sen Gupta
We study the spectral properties of and spectral-crossovers between different random matrix ensembles (Poissonian, GOE, GUE) in correlated spin-chain systems, in the presence of ra…
Intracavity Rydberg atom electromagnetically induced transparency using a high finesse optical cavity
Jiteng Sheng, Yuanxi Chao, Santosh Kumar +3
We present an experimental study of cavity assisted Rydberg atom electromagnetically induced transparency (EIT) using a high-finesse optical cavity (). Rydberg atoms…
Rydberg-atom based radio-frequency electrometry using frequency modulation spectroscopy in room temperature vapor cells
Santosh Kumar, Haoquan Fan, Harald Kübler +2
Rydberg atom-based electrometry enables traceable electric field measurements with high sensitivity over a large frequency range, from gigahertz to terahertz. Such measurements are…
Atom-Based Sensing of Weak Radio Frequency Electric Fields Using Homodyne Readout
Santosh Kumar, Haoquan Fan, Harald Kübler +2
We utilize a homodyne detection technique to achieve a new sensitivity limit for atom-based, absolute radio-frequency electric field sensing of .…
Collective state synthesis in an optical cavity using Rydberg atom blockade
Santosh Kumar, Jiteng Sheng, Jonathon A. Sedlacek +2
We investigate the coherent manipulation of interacting Rydberg atoms placed inside a high-finesse optical cavity for the deterministic preparation of strongly coupled light-matter…
Sub-wavelength microwave electric field imaging using Rydberg atoms inside atomic vapor cells
H. Q. Fan, S. Kumar, R. Daschner +2
We have recently shown that Alkali atoms contained in a vapor cell can serve as a highly accurate standard for microwave electric field strength as well as polarization using the p…