Department of Physics

Indian Institute Of Technology Madras , Chennai

Quantum Computation and Quantum Information Processing by NMR: Introduction and Recent Developments

Speaker : Professor Anil Kumar

2012-07-11

Abstract :

After an explosive beginning in mid 80's, the subject of `Quantum Computation and Quantum Information Processing (QIP)' continues to fascinate scientists even to date. While substantial progress has been made in the theoretical aspects of this field, the experimental progress continues to be challenging. The most successful of the various experimental techniques has been that of Nuclear Magnetic Resonance (NMR). Our research group which started experimental work in this field in late 90's, has performed several experiments which include: (i) preparation of pseudo-pure states, (ii) implementation of logic gates using one and two-dimensional NMR, (iii) implementation of Deutsch-Josza (DJ) and Grover's search algorithms, (iv) use of quadrupolar and dipolar coupled nuclei oriented in liquid crystal media for quantum information processing, (v) entanglement and entanglement transfer, (vi) observation of non-adiabatic geometric phase in NMR and its use in NMR QIP, (vii) implementation of some quantum games and (viii) implementation of adiabatic quantum algorithms by NMR and the use of Strongly Modulated Pulses (SMPs) in NMR QIP. Some of these works will be highlighted. Recent developments include, (i) experimental proof of Quantum No-Hiding theorem, (ii) non destructive discrimination of Bell States and other orthogonal states by NMR, (iii) use of Nearest Neighbour (NN) Heisenberg XY interaction for creation of entanglement in a linear chain of 3-qubits and (iv) use of Genetic Algorithm in NMR QC. These developments will be described.

Key Speaker Professor Anil Kumar
Guests
Place HSB 310
Start Time 5:00 PM
Finish Time 6:00 PM
External Link None