• Quantum Technologies.
• Atomic, Molecular, and Optical (AMO) Physics.
• Laser technologies.

Our current research focuses on developing experimental platforms to explore and harness the quantum properties of ultracold neutral atoms. We are building a state-of-the-art system that combines optical tweezers, high-finesse cavities, and Rydberg-mediated interactions to generate and control entangled atomic states. These systems enable fundamental studies of quantum many-body physics and have direct applications in quantum simulation, quantum-enhanced sensing, and next-generation timekeeping devices. By advancing techniques in laser cooling, precision control, and quantum state tomography, we aim to establish robust prototypes for quantum computers, atomic clocks, gravimeters, and quantum networks. This effort is complemented by theoretical and computational investigations that guide the design and optimization of our experiments.

• Rahul Sawant (Nov. 2023). “A protocol to create a multi-particle entangled state for quantum enhanced sensing”. In: Indian Journal of Physics 97 (13), pp. 3781–3788.
• Jonas Glatthard, Jesús Rubio, Rahul Sawant, Thomas Hewitt, Giovanni Barontini, and Luis A. Correa (Dec. 2022). “Optimal Cold Atom Thermometry Using Adaptive Bayesian Strategies”. In: PRX Quantum 3 (4), p. 040330
• Rahul Sawant, Anna Maffei, and Giovanni Barontini (Mar. 2021). “Thermalization of a Trapped Single Atom with an Atomic Thermal Bath”. In: Applied Sciences 11 (5), p. 2258.
• Jacob A Blackmore, Rahul Sawant, Philip D. Gregory, Sarah L. Bromley, Jesús Aldegunde, Jeremy M Hutson, and Simon L Cornish (Nov. 2020).“Controlling the ac Stark effect of RbCs with dc electric and magnetic fields”. In: Phys. Rev. A 102 (5), p. 053316.
• Jorge Mellado Muñoz, Rahul Sawant, Anna Maffei, Xi Wang, and Giovanni Barontini (Oct. 2020).“Realizing the Frenkel-Kontorova model with Rydberg-dressed atoms”. In: Phys. Rev. A 102 (4), p. 043308.
• Jorge Mellado Muñoz, Xi Wang, Thomas Hewitt, Anna U. Kowalczyk, Rahul Sawant, and Giovanni Barontini (July 2020).“Dissipative Distillation of Supercritical Quantum Gases”. In: Phys. Rev. Lett. 125 (2), p. 020403.
• Michael Hughes, Matthew D. Frye, Rahul Sawant, Gaurav Bhole, Jonathan A. Jones, Simon L. Cornish, M. R. Tarbutt, Jeremy M. Hutson, Dieter Jaksch, and Jordi Mur-Petit (June 2020). “Robust entangling gate for polar molecules using magnetic and microwave fields”. In: Phys. Rev. A 101 (6), p. 062308.
• Sourav Dutta, Rahul Sawant, and S A Rangwala (Jan. 2020).“Collisional cooling of trapped ions with cold atoms: results and insights”. In: Journal of Physics: Conference Series 1412, p. 062001.
• Philip D. Gregory, Matthew D. Frye, Jacob A. Blackmore, Elizabeth M. Bridge, Rahul Sawant, Jeremy M Hutson., and Simon L Cornish (July 2019).“Sticky collisions of ultracold RbCs molecules”. In: Nature Communications 10.1, pp. 1–7.
• Jacob A Blackmore, Luke Caldwell, Philip D Gregory, Elizabeth M Bridge, Rahul Sawant, Jesús Aldegunde, Jordi Mur-Petit, Dieter Jaksch, Jeremy M Hutson, B E Sauer, M R Tarbutt, and Simon L Cornish (Dec. 2018).“Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs”. In: Quantum Science and Technology 4.1, p. 014010.
• Rahul Sawant, Jacob A Blackmore, Philip D Gregory, Jordi Mur-Petit, Dieter Jaksch, Jesús Aldegunde, Jeremy M Hutson, M R Tarbutt, and Simon L Cornish (Jan. 2020).“Ultracold polar molecules as qudits”. In: New Journal of Physics 22.1, p. 013027.
• Rahul Sawant, Olivier Dulieu, and S. A. Rangwala (June 2018).“Detection of ultracold molecules using an optical cavity”. In: Phys. Rev. A 97 (6), p. 063405.
• Rahul Sawant and S. A. Rangwala (Sept. 2017). “Lasing by driven atoms-cavity system in collective strong coupling regime”. en. In: Scientific Reports 7.1, pp. 1–9.
• Sourav Dutta, Rahul Sawant, and S. A. Rangwala (Mar. 2017). “Collisional Cooling of Light Ions by Co-trapped Heavy Atoms”. In: Phys. Rev. Lett. 118 (11), p. 113401.
• Rahul Sawant and S. A. Rangwala (Feb. 2016). “Optical-bistability-enabled control of resonant light transmission for an atom-cavity system”. In: Phys. Rev. A 93 (2), p. 023806.
• Arijit Sharma, Tridib Ray, Rahul Sawant, G. Sheikholeslami, S. A. Rangwala, and D. Budker (Apr. 2015). “Optical control of resonant light transmission for an atom-cavity system”. In: Phys. Rev. A 91 (4), p. 043824.
• Rahul Sawant, Joseph Samuel, Aninda Sinha, Supurna Sinha, and Urbasi Sinha (Sept. 2014). “Nonclassical Paths in Quantum Interference Experiments”. In: Phys. Rev. Lett. 113 (12), p. 120406.

• 2025 : (Jul - Nov) - PH1010 Physics I