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Post-doctoral Positions - under following projects
(1) Generation of Quantum-states of light for precision interferometry:
We are seeking a highly motivated Postdoctoral Researcher to join our team in exploring advanced quantum optics for Gravitational wave detectors and next-generation precision sensors. This project lies at the intersection of several fields, including precision interferometry, quantum information processing, quantum-enhanced spectroscopy and sensing. The project focuses on the generation and efficient utilization of quantum states of light-particularly squeezed light. Squeezed light is a powerful resource routinely used in quantum communication, quantum computation, precision spectroscopy, and gravitational-wave detection. In current gravitational-wave (GW) observatories, the injection of squeezed light has already enabled sensitivities that surpass the performance limited by the classical shotnoise limit. Further improvements in GW detector performance will depend on the development of high-efficiency, low noise squeezed-light sources and the creation of innovative techniques to mitigate optical losses throughout the system. This position offers an excellent opportunity to contribute to-and take a leading role in-building a state-of-the-art quantum optics laboratory. The candidate will work in close collaboration with national and international experts in the field. The work will involve hands on with advanced experimental techniques in optical resonators, nonlinear light-matter interactions, precision measurements, and quantum technologies. One will work on and gain expertise in: - Building cutting-edge optical systems for squeezed light generation and detection. - Developing and exploring novel ideas and techniques for squeezed light-enhanced measurement systems and sensors. - Developing new techniques for the detection of homodyne and heterodyne signals in modified precision interferometers. - Conducting Finite Element Method (FEM) and optical simulations of advanced optical systems. - Developing theoretical collaboration and understanding of multi-mode squeezed light for mitigating loss effects.
For more details contact: Prof. Deepak Pandey | E-mail: deepak.pandey [AT] iucaa.in
(2) Gravitational Wave Instrumentation:
Applications are invited for postdoctoral positions in Gravitational Wave (GW) Detector Physics and Instrumentation related to LIGO-India. IUCAA is engaged in major activities for the LIGO-India mega-science project and works on various aspects of GW detector technology development and site preparation. Candidates with experience in any of the related experimental physics or engineering domains, such as, GW instrumentation, noise hunting in electro-mechanical systems, detector related data-analysis, laser stabilisation, Michelson and Fabry-Perot interferometry, instrumentation related to seismic isolation, modelling coupled optical cavities and interferometers, MIMO control systems and related fields are encouraged to apply.
For more details contact: Prof. Sanjit Mitra | E-mail: sanjit [AT] iucaa.in
(3) High-redshift galaxies in the Hubble Frontier Fields and GOODS field:
Hubble Frontier Fields (HFF) and GOODS fields provide a unique opportunity to study the nature of high-redshift galaxies. These fields contain deep optical, IR observations from HST, Spitzer, MUSE/IFU and has been recently observed with JWST. Deep UV observations from AstroSat will provide a direct measurement of the recent star formation, identification of young galaxies (combined with IFU spectra), possible identification of galaxies leaking ionizing photons as well as constraining the UV luminosity function. Successful candidate will have opportunity to work in any of these areas or more. Preference will be given to candidates with knowledge of photometry, spectroscopy and a basic understanding of astronomical software such as IRAF, GALFIT and python coding.
For more details contact: Prof. Kanak Saha | E-mail: kanak [AT] iucaa.in
(4) Optical fiber based quantum enhanced distributed acoustic sensing:
The present gravitational wave detector's sensitivities are majorly limited by the residual acoustic/ Newtonian noise coupled to the detector. Further improvement of the detector sensitivity is expected by the development of sensors capable of detecting these noises along the detector arms with unprecedented accuracies. Distributed Acoustic Sensing (DAS) using an underground laid optical fiber shall replace the seismometer array and have a much more extensive coverage area. The DAS has a wide range of applications, including active noise cancellation of the gravitational wave detectors and also for long-range seismometry, seismic noise monitoring, early warning of tsunami / volcanic eruption, early detection of cracks in flyover, surveillance of unwanted underground activities which fall out of the visual range of satellites and many more. At IUCAA, we are working on a novel approach to realizing the DAS, and we already demonstrated seismic wave detection. Under the scope of this position, the selected candidate is expected to upgrade and finetune the developed DAS technology. For these, hands-on expertise in optics, electronics, and Python programming will be essential. For any further technical query or discussion about the project or lab visit, interested candidates may feel free to contact Prof. Subhadeep De (subhadeep@iucaa.in), principal investigator of this project.
For more details contact: Prof. Subhadeep De | E-mail: subhadeep [AT] iucaa.in
(5) Supernova driven diffusive shock acceleration in star forming galaxies:
Synchrotron emission in star forming galaxies is primarily driven by non-thermal electrons accelerated at supernovae shocks and star forming regions. The acceleration mechanism of such electrons can be varied, with diffusive shock acceleration considered to be one of the major drivers. The efficiency of such a mechanism under the influence of different ISM properties such as Supernova rate, magnetic field, mean density etc. are currently ill-constrained. The candidate will perform a suite of MHD simulations with the new hybrid particle-fluid module of the PLUTO code to test the above scenarios. The primary aim would be to constrain observable properties of non-thermal Synchrotron emission in High redshift star forming galaxies, such as Synchrotron spectra, rotation measure etc., and understand their dependence on the star formation rate of such galaxies. Such results will be essential to disentangle the origin of radio emission in star forming galaxies and differentiate from other sources of such emission such as AGN driven outflows.
Required Qualifications / Skills: Candidate with prior experience with fluid simulations and a reasonable working knowledge of C/C++, Python and MPI will be preferred.
For more details contact: Prof. Dipanjan Mukherjee | E-mail: dipanjan [AT] iucaa.in
