Probe thermometry with continuous measurements

J Boeyens, B Annby-Andersson… - New Journal of …, 2023 - iopscience.iop.org
Temperature estimation plays a vital role across natural sciences. A standard approach is
provided by probe thermometry, where a probe is brought into contact with the sample and …

[HTML][HTML] Giant Faraday rotation in atomically thin semiconductors

B Carey, NK Wessling, P Steeger, R Schmidt… - Nature …, 2024 - nature.com
Faraday rotation is a fundamental effect in the magneto-optical response of solids, liquids
and gases. Materials with a large Verdet constant find applications in optical modulators …

[HTML][HTML] Fast loaded dual species magneto optical trap of cold sodium and potassium atoms with light-assisted inter-species interaction

S Sutradhar, A Misra, G Pal, S Majumder, S Roy… - AIP Advances, 2023 - pubs.aip.org
We present the design, implementation, and detailed experimental characterization and
comparison with numerical simulations of twodimensional magneto-optical traps (MOTs) of …

High‐performance broadband Faraday rotation spectroscopy of 2D materials and thin magnetic films

B Carey, NK Wessling, P Steeger, C Klusmann… - Small …, 2022 - Wiley Online Library
A Faraday rotation spectroscopy (FRS) technique is presented for measurements on the
micrometer scale. Spectral acquisition speeds of about two orders of magnitude faster than …

Many-body quantum chaos in mixtures of multiple species

V Kumar, D Roy - Physical Review E, 2024 - APS
We study spectral correlations in many-body quantum mixtures of fermions, bosons, and
qubits with periodically kicked spreading and mixing of species. We take two types of mixing …

Transition frequency measurement of highly excited Rydberg states of 87Rb for a wide range of principal quantum numbers

S BS, SK Barik, S Chaudhuri, S Roy - Optics Continuum, 2022 - opg.optica.org
We report our measurements of the absolute transition frequencies of 5P_3/2, F?=? 3 to nS
and nD Rydberg states of^ 87Rb with high principal quantum numbers in a wide range of …

Measuring non-linear Faraday rotation in cold atoms in presence of persistent transverse fields using tunable differential imaging

S Garain, SN Sahoo, AK Mohapatra - Optics Express, 2024 - opg.optica.org
Non-linear Faraday rotation in cold atoms promises precision magnetometry due to
narrower magnetic resonance linewidth compared to the linear Faraday effect. Imaging …

Interplay of dissipation and memory in the quantum Langevin dynamics of a spin in a magnetic field

S Bhattacharjee, K Mandal, S Sinha - International Journal of …, 2024 - World Scientific
We derive a quantum Langevin equation for a quantum spin in the presence of a magnetic
field and coupled to a bath. We have considered two models for the bath: an Ohmic bath …

Long-range interactions revealed by collective spin noise spectra in atomic vapors

J Delpy, N Fayard, F Bretenaker, F Goldfarb - arXiv preprint arXiv …, 2024 - arxiv.org
We report anomalous features in the spin noise spectroscopy (SNS) of a thin cell of a dense
vapor of alkali atoms. At high densities and close to resonance, we observe a dramatic …

Effects of resonant dipole-dipole interactions in the spin noise of atomic vapors

J Delpy, N Fayard, F Bretenaker, F Goldfarb - arXiv preprint arXiv …, 2024 - arxiv.org
We perform spin noise spectroscopy close to resonance in a 1-mm-thick cell containing a
dense Rubidium vapor. A laser is used to excite optical dipoles in the vapor while probing …