naa a22 4500 510767419 CHVBK 20180411083201.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12043-013-0546-z doi (NATIONALLICENCE)springer-10.1007/s12043-013-0546-z Vibrational resonance in the Morse oscillator [Elektronische Daten] [K ABIRAMI, S RAJASEKAR, M SANJUAN] The occurrence of vibrational resonance is investigated in both classical and quantum mechanical Morse oscillators driven by a biharmonic force. The biharmonic force consists of two forces of widely different frequencies ω and Ω with Ω ≫ ω. In the damped and biharmonically driven classical Morse oscillator, by applying a theoretical approach, an analytical expression is obtained for the response amplitude at the low-frequency ω. Conditions are identified on the parameters for the occurrence of resonance. The system shows only one resonance and moreover at resonance the response amplitude is 1/dω where d is the coefficient of linear damping. When the amplitude of the high-frequency force is varied after resonance the response amplitude does not decay to zero but approaches a nonzero limiting value. It is observed that vibrational resonance occurs when the sinusoidal force is replaced by a square-wave force. The occurrence of resonance and antiresonance of transition probability of quantum mechanical Morse oscillator is also reported in the presence of the biharmonic external field. Indian Academy of Sciences, 2013 Morse oscillator nationallicence biharmonic force nationallicence vibrational resonance nationallicence ABIRAMI K. School of Physics, Bharathidasan University, 620 024, Tiruchirapalli, India aut RAJASEKAR S. School of Physics, Bharathidasan University, 620 024, Tiruchirapalli, India aut SANJUAN M. Nonlinear Dynamics, Chaos and Complex Systems Group, Departamento de Física, Universidad Rey Juan Carlos, Tulipán s/n, 28933, Móstoles, Madrid, Spain aut Pramana Springer India 81/1(2013-07-01), 127-141 0304-4289 81:1<127 2013 81 12043 https://doi.org/10.1007/s12043-013-0546-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12043-013-0546-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- ABIRAMI K. School of Physics, Bharathidasan University, 620 024, Tiruchirapalli, India aut NATIONALLICENCE 700 1- RAJASEKAR S. School of Physics, Bharathidasan University, 620 024, Tiruchirapalli, India aut NATIONALLICENCE 700 1- SANJUAN M. Nonlinear Dynamics, Chaos and Complex Systems Group, Departamento de Física, Universidad Rey Juan Carlos, Tulipán s/n, 28933, Móstoles, Madrid, Spain aut NATIONALLICENCE 773 0- Pramana Springer India 81/1(2013-07-01), 127-141 0304-4289 81:1<127 2013 81 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer