159 citations · 769 across the 18 of their papers we have counts for
18 papers
Evaporative cooling by pulse width modulation (PWM) of optical dipole traps
S. Sagar Maurya, Joel M. Sunil, Monu Bhartiya +4
We introduce a method for cooling atoms in an optical dipole trap using pulse-width modulation (PWM) technique, without reducing the laser power of the dipole trap. The PWM techniq…
Detection of radiatively open systems using an optical cavity
V. I. Gokul, Arun Bahuleyan, Raghuveer Singh Yadav +4
We experimentally demonstrate a cavity-based detection scheme for a cold atomic ensemble with a radiatively open transition. Our method exploits the collective strong coupling of a…
A protocol to create a multi-particle entangled state for quantum-enhanced sensing
Rahul Sawant
We propose a protocol for generating multi-particle entangled states using coherent manipulation of atoms trapped in an optical cavity. We show how entanglement can be adiabaticall…
Optimal cold atom thermometry using adaptive Bayesian strategies
Jonas Glatthard, Jesús Rubio, Rahul Sawant +3
Precise temperature measurements on systems of few ultracold atoms is of paramount importance in quantum technologies, but can be very resource-intensive. Here, we put forward an a…
Thermalization of a Trapped Single Atom with an Atomic Thermal Bath
Rahul Sawant, Anna Maffei, Giovanni Barontini
We studied a single atom trapped in an optical tweezer interacting with a thermal bath of ultracold atoms of a different species. Because of the collisions between the trapped atom…
Realizing the Frenkel-Kontorova model with Rydberg-dressed atoms
Jorge Mellado Muñoz, Rahul Sawant, Anna Maffei +2
We propose a method to realize the Frenkel-Kontorova model using an array of Rydberg dressed atoms. Our platform can be used to study this model with a range of realistic interatom…
Controlling the ac Stark effect of RbCs with dc electric and magnetic fields
Jacob A. Blackmore, Rahul Sawant, Philip D. Gregory +4
We investigate the effects of static electric and magnetic fields on the differential ac Stark shifts for microwave transitions in ultracold bosonic RbCs molecules,…
Dissipative Distillation of Supercritical Quantum Gases
Jorge Mellado Munoz, Xi Wang, Thomas Hewitt +3
We experimentally realize a method to produce non-equilibrium Bose Einstein condensates with condensed fraction exceeding those of equilibrium samples with the same parameters. To…
A robust entangling gate for polar molecules using magnetic and microwave fields
Michael Hughes, Matthew D. Frye, Rahul Sawant +7
Polar molecules are an emerging platform for quantum technologies based on their long-range electric dipole-dipole interactions, which open new possibilities for quantum informatio…
Ultracold polar molecules as qudits
Rahul Sawant, Jacob A Blackmore, Philip D Gregory +6
We discuss how the internal structure of ultracold molecules, trapped in the motional ground state of optical tweezers, can be used to implement qudits. We explore the rotational,…
Sticky collisions of ultracold RbCs molecules
Philip D. Gregory, Matthew D. Frye, Jacob A. Blackmore +4
Understanding and controlling collisions is crucial to the burgeoning field of ultracold molecules. All experiments so far have observed fast loss of molecules from the trap. Howev…
Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
Jacob A Blackmore, Luke Caldwell, Philip D Gregory +9
We explore the uses of ultracold molecules as a platform for future experiments in the field of quantum simulation, focusing on two molecular species, CaF and …
Detection of ultracold molecules using an optical cavity
Rahul Sawant, Olivier Dulieu, S. A. Rangwala
We theoretically study non-destructive detection of ultracold molecules, using a Fabry-Perot cavity. Specifically, we consider vacuum Rabi splitting where we demonstrate the use of…
Lasing by driven atoms-cavity system in collective strong coupling regime
Rahul Sawant, S. A. Rangwala
The interaction of laser cooled and trapped atoms with resonant light is limited by the linewidth of the excited state of the atom. Another precise optical oscillator is an optical…
Collisional cooling of light ions by co-trapped heavy atoms
Sourav Dutta, Rahul Sawant, S. A. Rangwala
We experimentally demonstrate cooling of trapped ions by collisions with co-trapped, higher mass neutral atoms. It is shown that the lighter K ions, created by ionizin…
Optical bistability enabled control of resonant light transmission for an atom-cavity system
Rahul Sawant, S. A. Rangwala
The control of light transmission through a Fabry-Perot cavity containing atoms is theoretically investigated, when the cavity mode beam and an intersecting control beam are both c…
Optical control of resonant light transmission for an atom-cavity system
Arijit Sharma, Tridib Ray, Rahul V. Sawant +3
We demonstrate the manipulation of transmitted light through an optical Fabry-Perot cavity, built around a spectroscopy cell containing enriched rubidium vapor. Light resonant with…
Non-classical paths in interference experiments
Rahul Sawant, Joseph Samuel, Aninda Sinha +2
In a double slit interference experiment, the wave function at the screen with both slits open is not exactly equal to the sum of the wave functions with the slits individually ope…