Navin Khaneja
- Ph.D. 2000
Harvard University
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email: navinkhaneja@gmail.com
Ph (office): +91-22-2576-9414
Ph (home): +91-22-2576-5414
mobile: +91-9560481009
curriculum vita (10/22)
IIT Bombay
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Navin Khaneja
Professor of Systems and Control
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We live in a world of quantum. From lasers, light emitting diodes (LED), field effect transistors, ccd cameras, all modern technology lives in quantum. In recent years there has been emphasis to make information also quantum. There is emphasis to control and manipulate this quantum information to build a quantum computer. All this involves excercising control on quantum techologies, the world of quantum control. Topic of my current research. A wonderful testbed for quantum control is control of spins in nuclear magnetic resonance (NMR). A fundamental problem in NMR spectroscopy and quantum
information science is to find limits on how close can an open quantum
dynamical system be driven to a target state in the presence of
dissipation and decoherence and what is the optimal excitation that
achieves this objective. We are studying these problems in the context
of design of multidimensional NMR experiments that maximize the
efficiency of transfer of coherence between coupled spins in the
presence of decoherence and optimize the sensitivity of these
experiments. Other projects include development of novel radio frequency
pulse sequences for time optimal control of coupled spin systems with
applications in spectroscopy and quantum informaion processing. Problems
in robust control of spin systems, that are immune to parametric
inhomogeneties in system dynamics. Development of new methods in
high resolution nuclear magnetic resonance spectroscopy in solution and
solids. The work has an important collaborative experimental
component. Some past projects involve feedback stabilization of
nonholonomic systems and problems in machine intelligence and
statistical inference.
Selected Publications:
S. Sarkar, P. Paruchuri, N. Khaneja, `` Nonlinear Chirp Sequence for Broadband Rotation Using Hyperbolic Secant Pulse'' Applied Magnetic Resonance 1-18 (2023).
Justin Jacob, Navin Khaneja, ``MODE: Multiply modulated frame technique, excitation and coherence transfer '' Journal of Magnetic Resonance 353, 107500 (2023).
Tejas Shetty, Navin Khaneja, ``Design of NMR pulses by interative optimization of phases '' Applied Magnetic Resonance , 54(3):1-8, (2023).
Sambeda Sarkar, Navin Khaneja, ``Band selective excitation and pi/2 rotation using Fourier synthesis'' Applied Magnetic Resonance , DOI:10.1007/s00723-023-01547-6, (2023).
Sreya Das, Navin Khaneja, ``Composite pulse combinations for chirp excitation'' Journal of Magnetic Resonance , 347, 107359, (2022).
Sreya Das, Justin Jacob, Navin Khaneja, ``Mechanism of chirp excitation'' Journal of Magnetic Resonance Open , Volumes 10-11, 100026, (2022).
S. Sarkar, R. Purusottam, A. Kumar and N. Khaneja, ``Chirp pulse sequences for broadband 180 rotation'' Joural of Magnetic Resonance 328, 107002 (2021)
N. Khaneja, "Time Optimal Control of Coupled Spin Dynamics: A global analysis " Automatica 111, 108639 (2020).
N. Khaneja, "Double swept band selective excitation" Global Journal of researches in Engineering:F Vol 19, Issue 2, Version 1.0 (2019).
N. Khaneja, "Magnetic resonance with number states vs coherent states" International Journal of modern Physics B (2018) https://doi.org/10.1142/S0217979218503368
N. Khaneja, "Convexity, Majorization and Time Optimal Control of Coupled Spin Dynamics" Applied Modern Control Intech, Open (2018) https://cdn.intechopen.com/pdfs/63378.pdf
N. Khaneja, "Conservation of Energy, Density of States and Spin Lattice relaxation" Concepts in Magnetic Resonance: Part A (2018); 46A:e21457.
N. Khaneja, "Chirp Mixing" Chemical Physics Letters 704, 62-67 (2018)
N. Khaneja, "Electron dynamics in solid state via time varying wavevectors" Physica B 539, 29-34 (2018).
N. Khaneja, "Chirp excitation" Journal of Magnetic Resonance 282, 32-36 (2017).
N. Khaneja and A. Kumar, "Two Pulse Recoupling" Journal of Magnetic Resonance 281, 162-171 (2017).
N. Khaneja and A. Kumar, "Broadband excitation by method of double sweep", Applied Magnetic Resonance 48(8), 771-782 (2017).
N. Khaneja "Rf-inhomogeneity compensation using method of Fourier synthesis" Journal of Magnetic Resonance, 277, 113-116 (2017).
N. Khaneja "Cone separation, quadratic control systems and control of spin dynamics in presence of decoherence", Phil. Tran. R. Soc. A , 375, (2017).
N. Khaneja and A. Kumar, "Four Pulse Recoupling" Journal of Magnetic Resonance 272, 158-165 (2016).
N. Khaneja and A. Kumar, "Recoupling Pulse Sequences with Constant Phase Increments" Journal of Magnetic Resonance 271, 75-82 (2016).
Van Koroleva and N. Khaneja "Homonuclear decoupling for liquid-state NMR" Journal of Chemical Physics, 137, 094103 (2012).
H. Arthnari, G. Wagner and N. Khaneja "`Heteronuclear Decoupling by Multiple Rotating Frame Technique" Journal of Magnetic Resonance, 209, 8-18 (2011).
N. Khaneja and N.C. Nielsen "Triple oscillating field technique for accurate measurement of internuclear distances by solid state NMR spectroscopy" Journal of Chemical Physics, 128, 015103 (2008).
N. Khaneja "Switched Control of Electron Nuclear Spin Systems " Phys. Rev. A , 76, 032326 (2007) .
N. Khaneja, C. Kehlet, S.J. Glaser and N.C. Nielsen " Composite dipolar recoupling: Anisotropy compensated coherence transfer in solid-state nuclear magnetic resonance " Journal of Chemical Physics vol. 124, 114503 (2006).
Physics and Control Handouts:
Quantum Control Handouts:
Solid State Systems and Control
System Theory
Linear systems and Electromagnetic Waves
High energy physics and systems
Scattering
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Navin Khaneja |
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