Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Mitaxi Mehta"'
Autor:
Mitaxi Mehta, Yesha Bhavsar
Publikováno v:
2017 International Conference on Algorithms, Methodology, Models and Applications in Emerging Technologies (ICAMMAET).
Many datasets contain variables that take binary values. Often one would like to subset the data set according to the value of such a binary variables and compare and contrast the statistical parameters for such subsets. We have written an R code to
Publikováno v:
Physics Letters A. 378:362-366
We show that the steady states of the classical Heisenberg XXX spin-chain in an external magnetic field can be found by iterations of a quaternionic map. A restricted model, e.g., the xy spin-chain is known to have spatially chaotic steady states and
Publikováno v:
European Journal of Physics. 39:065805
The golden ratio and Fibonacci numbers are found to occur in various aspects of nature. We discuss the occurrence of this ratio in an interesting physical problem concerning center of masses in two dimensions. The result is shown to be independent of
Autor:
Abhijit Sen, Mitaxi Mehta
Publikováno v:
Physics Letters A. 355:202-206
We present a simple analysis for obtaining the death island boundaries for delay-coupled limit cycle oscillator chains. We show analytically that for identical oscillators with nearest neighbour coupling, only two curves define the island boundary co
Autor:
Mitaxi Mehta, Radha Balakrishnan
Publikováno v:
The European Physical Journal D. 33:437-446
We calculate the geometric phase associated with the time evolution of the wave function of a Bose-Einstein condensate system in a double-well trap by using a model for tunneling between the wells. For a cyclic evolution, this phase is shown to be ha
Publikováno v:
International Journal of Bifurcation and Chaos. 13:3029-3035
It is found that adding constant forcing terms to the Lorenz equations breaks the (x,y)→(-x,-y) symmetry of the system. As a result of the symmetry breaking the consecutive z max return map (the cusp map) gets split into a double-cusp map. We inves
Publikováno v:
Journal of Physics A: Mathematical and General. 36:1095-1110
We present an analytical calculation of periodic orbits in the homogeneous quartic oscillator potential. Exploiting the properties of the periodic Lam{\'e} functions that describe the orbits bifurcated from the fundamental linear orbit in the vicinit
Autor:
Mitaxi Mehta, Radha Balakrishnan
Publikováno v:
Physical Review E. 61:1312-1319
We study the lowest-lying excitation of a classical ferromagnetic XY spin chain, in the presence of a symmetry breaking magnetic field. Extremizing the energy of this system leads to a two-dimensional nonlinear map, whose allowed phase space shrinks
Autor:
B R Sitaram, Mitaxi Mehta
Publikováno v:
Pramana. 46:323-329
In this communication, we report the results of the application of time dependent perturbation theory to a non-integrable Hamiltonian which is a perturbation on a Hamiltonian with nonconstant frequencies. The theory provides good time dependent local
Autor:
Mitaxi Mehta, B R Sitaram
Publikováno v:
Pramana. 45:149-164
In this communication, we report the results of the application of time-dependent perturbation theory to the Henon-Heiles system. We show that the predictions of the perturbation theory hold good for short times, and try to explain the increase of er