Bihari Physicist:-Tathagat Avatar Tulsi

                                                

Tathagat was born in Bihar state  father Shri Tulsi Narayan Prasad is an advocate and  mother Smt. Chanchal Devi is a teacher.He has two elder brothers Mahesh and Vishwa. 

 Tathagat Avatar Tulsi. Tathagat is the adjective of Lord Buddha and Avatar means 'Incarnation'. Tulsi is name of  his father . So, according to his name,He is incarnation of Lord Buddha..

Tathagat Avatar Tulsi born on 9 September 1987 is an Bihari physicist, best known as a child prodigy. He completed high school at the age of 9, earned a B.Sc. at the age of 10 and a M.Sc. at the age of 12 from Patna Science College (Patna University). In August 2009, he got his Ph.D. from the Indian Institute of Science, Bangalore at the age of 21. In 2010, he was offered a position as Assistant Professor on contract (a non-permanent teaching position for fresh PhD graduates) at IIT Bombay. Various Indian newspapers claimed that this made him the youngest faculty member ever at an IIT.

 He is doing  research in the area of "Quantum Computing". His supervisors are Prof. Apoorva Patel and Prof. H.R.Krishnamurthy.,also collaborated with Dr. Lov Grover, famous for his invention of quantum search algorithm, at Bell Labs, USA in 2005.His  papers can be found on the Quantum Physics archive of Los Alamos National Laboratory. Very soonadditional notes on

 What is QC

Quantum Computing(QC) offers us a powerful computational tool by exploiting superposition and entanglement of quantum states of a system. The two famous examples of this "Quantum Power" are Shor's factoring algorithm and Grover's search algorithm. Using Shor's factoring algorithm and a large scale quantum computer (which at present, we don't have), we can find out the factors of a large number very quickly compared to our present classical computers and this implies breaking of the popular RSA cryptosystem. The quantum search algorithm provides us a square-root speedup compared to classical one. Just to give an example, if classical computer takes 7.5 billion seconds (about 236 years) to search a particular unsorted database, a quantum one can do it only in 1 day (square root of 7.5 billion seconds is 86602 seconds, which is about 1 day). At present, we don't have a quantum computer which can deal with more than 7 qubits and to solve a practical problem we need to deal with around 10000 qubits. Research is going on in both experimental part and theoretical part. Quantum Cryptography is another major application of quantum power, which gives us a secure cryptographic protocol.