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- Tata Institute of Fundamental ResearchIN267 papers
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Showing 2004Show all
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cond-mat.mtrl-sci2004★ 47 cited
Ab initio linear response and frozen phonons for the relaxor PMN (PbMg1/3Nb2/3O3)
Narayani Choudhury, Zhigang Wu, E. J. Walter +1
We report first principles density functional studies using plane wave basis sets and pseudopotentials and all electron linear augmented plane wave (LAPW) of the relative stability…
cond-mat.stat-mech2004
A formalism for studying long-range correlations in many-alphabets sequences
S. L. Narasimhan, Joseph A. Nathan, P. S. R. Krishna +1
We formulate a mean-field-like theory of long-range correlated -alphabets sequences, which are actually systems with independent parameters. Depending on the values of t…
quant-ph2004
A pseudo-unitary ensemble of random matrices, PT-symmetry and the Riemann Hypothesis
Zafar Ahmed, Sudhir R. Jain
An ensemble of 2 x 2 pseudo-Hermitian random matrices is constructed that possesses real eigenvalues with level-spacing distribution exactly as for the Gaussian Unitary Ensemble fo…