Principles of nuclear magnetic resonance in one and two dimensions Alexander Wokaun, Geoffrey Bodenhausen, Richard R. Ernst
Publisher: Clarendon Press

By varying the delay between the two gradient pulses one can probe the distance the spins have moved, and if they are in a bounded pore, one can obtain information on the pore dimensions, but not the full pore shape, since phase information is lost. An NMR technique tracks the diffusion of water molecules to obtain micron-scale structural information about a porous material. The system Hamiltonian can then be written as. Principle investigator -Fast Track scheme of DST .. We consider two qubits interacting with local magnetic fields and coupled through the Heisenberg interaction. Hˆ = Hˆz B1,B2 + Hˆex Jx,Jy,Jz. N-dimensional Hilbert space, which requires N2−1 real parameters for . Have moved, the spins do not all re-phase as well, and the echo amplitude is reduced. Tem, using nuclear magnetic resonance NMR. Principle investigator - EMPOWER project scheme of CSIR; Collagen and leather.