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Sumanta Khan 
h Fellow

Dr. Sumanta Khan is leading the Grating-based lattice optical clock (G-BLOC) project within the Alkaline research group. He became a member of the research group in October, 2023. His research interest involves ultracold atoms, quantum information processing with trapped ions, coherent control spectroscopy. At present, he is dedicated to the development of a miniaturized optical lattice clock utilizing neutral Sr atoms.

Contact details


  • Ph.D. in Physics, Indian Institute of Science, Bangalore, India, 2019.

  • M.Sc. in Physics, Jawaharlal Nehru University, New Delhi, India, 2013.

Selected Publications

  • Joseph Broz, Bingran You, Sumanta Khan, Hartmut Häffner, David E. Kaplan, Surjeet Rajendran. Test of causal nonlinear quantum mechanics by Ramsey interferometry with a trapped ion. Physical Review Letters 130, 200201 (2023). 

  • Mangesh Bhattarai, Sumanta Khan, Vasant Natarajan, and Kanhaiya Pandey. Laser interferometry based on atomic coherence. Journal of Physics B: Atomic, Molecular and Optical Physics 54, 075401 (2021).

  • Sumanta Khan, Molahalli Panidhara Kumar, Vineet Bharti, and Vasant Natarajan. Coherent population trapping (CPT) versus Electromagnetically induced transparency (EIT). The European Physical Journal D, 71(2):38, (2017).

  • Sumanta Khan, Vineet Bharti, and Vasant Natarajan. Role of dressed-state interference in electromagnetically induced transparency. Physics Letters A, 380, 48, {4100 – 4104}, (2016).

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