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PROFILE BOOK Of PROFILE BOOK of DST/SERB-Ramanujan Fellows DBT-Ramalingaswami Fellows DST-INSPIRE Faculty Fellows Released on the occasion of the 1st Joint Conclave of DST/SERB-Ramanujan, DBT-Ramalingaswami and DST-INSPIRE Fellows (Monitoring-cum-Interaction Meet) at Jaipur on 8th to 10th June 2018. Administrator [Type the company name] [Pick the date] DST-DBT Joint Conclave 2018 SERB-Ramanujan Fellow 6 DST-DBT Joint Conclave 2018 Alok Kumar Pan Assistant Professor RJN-083/2014 National Institute of Technology, Patna Email ID: [email protected] Availed Fellowship from : December 17, 2015 Research undertaken as DST-Ramanujan Fellow v The quantum contextuality is traditionally demonstrated through the violation of non-contextual value assignment of compatible observables in a realist model. We demonstrated a kind of contextuality within QT without any reference to relist model. v The notion of traditional contextuality is extended and generalized to the preparation and transformation. We showed how preparation contextuality in QT powers one-way communication game. We further generalized that game and derived the optimal success probability of the for n-bit case. v It is commonly believed that coarse grained measurements can give rise to a classical description of a system. We showed that if the satisfaction of Leggett- Garg inequality (LGI) is an indicator of classicality then it does not emerge by coarsening the measurement. v For Bell scenario involving two-party, two outcomes, two measurements per site, the only relevant Bell’s inequality is the CHSH form. Standard LGIs are often considered to be the analogues to the CHSH inequalities. We provided a generic proof to show that some probabilistic LGIS are not only inequivalent to the standard ones but also stronger than them. v Recently, it is shown that the Lueders bound of LGIs can be violated if von Neumann projective measurement is used. We questioned the implication of such violation of Lueders bound and proved that it has no relevance to the quantum violation of a realist model. v The non-ideal quantum measurement theory with and without post-selection is studied. We provided an all-order-coupling treatment of joint weak measurement scenario which enables us to extract the joint weak value from the single pointer displacement and to show the negative probabilities emerge in the quantum paradoxes. v Using a suitable setup involving linear optical devices, we proposed a curious protocol for swapping the intra-photon entanglement in a single photon to intra- photon entanglement between two spatially separated photons. The same set-up is used to demonstrate quantum state transfer protocol. Crucially, both the protocols do not require the Bell-basis discrimination SERB-Ramanujan Fellow 7 DST-DBT Joint Conclave 2018 Future Research plans Despite its enormous success as a physical theory, there is still no consensus among physicists about what QT says about the nature of reality. This is one of the many motivations for pursuing research on quantum foundations. Another is the development of quantum technologies, such as, quantum computation and quantum cryptography by exploiting its counterintuitive features. A better understanding of the theory facilitates the identification and development of these new technologies and also further the harnessing of the power of non-classicality. Against this backdrop, the objective of my proposed research studies would be threefold: • The most important features that were derived from the arena of foundations of QT are non-locality for multipartite system and contextuality for single system. In recent times, there is an upsurge of interest to study whether quantum contextuality can be useful for gaining advantages in communication task. I shall study the generalized notion of quantum contextuality from foundational perspective and explore the power of generalized quantum contextuality in various communication and computational tasks. I shall also propose experimentally feasible new communication tasks aided with contextual correlation in QM which can lead to the development of quantum technology in future. In this connection, I shall investigate the connection between the non- contextuality and other distinctions of ontological models. • The process of measurement is governed by the laws of physics. Therefore, the measurement precision not only depends on the technological limitation but also on the fundamental limit imposed by the physical laws. Metrology is the science of measurement. The accuracy of parameter estimation can be enhanced by using the principles of QT. I shall study the quantum enhance metrology for various quantum systems in particular in the presence of technical noise. Another goal is to probe the eccentric weak value aided improvement of precision compared to the standard strategy. • Uncertainty principle has been considered to be one of the backbones of quantum mechanics and played a pivotal role in the discovery of quantum cryptography. In recent times, there are various interpretations of this principle viz., preparation uncertainty, measurement uncertainty, and error-disturbance trade-off relations. Besides foundational studies of the various expressions of uncertainty principle, we plan to investigate the application of the measurement uncertainty relation for security analysis of various quantum communication tasks. We shall also study the memory assisted reformulation of uncertainty relation for the scenario of multipartite entanglement which is of great importance as this will have intimate connection with information processing tasks involving many parties. SERB-Ramanujan Fellow 8 DST-DBT Joint Conclave 2018 Anuj Kumar Ramanujan Fellow SB/S2/RJN-076/2015 CSIR-Central Building Research Institute Roorkee Email ID: [email protected] or [email protected] Availed Fellowship from : March 14, 2018 Research undertaken as DST-Ramanujan Fellow An air quality monitoring system (AQMS) based on IEEE/ISO/IEC 21451 standards is presented. In the development of AQMS, we have used the GSM wireless communication module. The developed system is capable of real-time measurement of air polluted gases such as CO2, CO, NO2, and SO2. The machine-to-machine communication of the air quality monitoring station and PC with the sink node was successfully implemented. Various gas sensor technologies were evaluated for the system and ultimately electrochemical and infrared sensors were used. Hardware and software for an AQMS was designed and implemented. The AQMS uses an array of sensors to take measurements of the ambient air surrounding it and wirelessly transmits the data to the base station. A graphical user interface (GUI), which makes it easy for end user(s) to interact with the system, was developed. Gas concentration values are plotted on the GUI. The defined calibration of the instruments at time interims assures that the desired accuracy is sustained. A wireless sensor actuator network based ventilation monitoring and control system is developed for buildings. Sensor array modules with ZigBee communication are implemented successfully. Machine-to-machine communication of the exhaust fans and the control Apps with PC (personal computer) was successfully carried out. Developed system is capable of online monitoring of exhaust fans running information parameters such as air flow, vibration, rpm (revolutions per minute), and load. The system is also capable of ventilation control for good indoor air quality based on real-time monitoring of environmental parameters like as CO2, temperature and relative humidity. Exhaust fans real-time information and environmental parameters values are displayed on the GUI developed using Visual Studio C# language. Calibration of the sensor module and exhaust system has been implemented successfully and they assure that the desired accuracy is sustained after a time interval. Developed system is of low cost, and energy efficient with high accuracy. Future Research plans Commercial and Residential Buildings consume around 40% of total energy in most of developed countries annually. Tremendous increment of energy consumption over time due to the growth of real estate and satisfaction of human comfort draws researchers’ attention to improve the existing building systems. Related research areas of interest to be conducted within building context are energy usage optimization, power flow control of the distribution systems, renewable energy integration, etc. Modern buildings are SERB-Ramanujan Fellow 9 DST-DBT Joint Conclave 2018 complex systems which are usually equipped with a large number of inter-connected equipment and subsystems. Thus, in order to support the efficient operations of systems, it is essential to coalesce communication, control and computation technologies as well as handling with big data analysis, prediction and decision making. In this regards, we developing a wireless sensor network based smart lighting system that combines heterogeneous lighting technologies enabling intelligent functions and real-time indoor environmental quality monitoring and control system. Also, the Building Management System (BMIS) would be developed based on systems thinking to achieve energy efficiency along with human comfort. Research works also intend to develop dashboards as a part of the overall project, through which authenticated users can visualize data flow, make qualitative assessments and take necessary corrective actions if needed. It is expected that the overall energy consumption of the building would
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