3 papers
quant-ph2019
Expectation value of in continuous two-piece symmetric potential wells
Zafar Ahmed, Sachin Kumar
Earlier, potentials like square well and several other half-potential wells with discontinuous jump have been found to have the expectation value to be divergent for…
quant-ph2017
Coalescing versus merging of energy levels in one-dimensional potentials
Zafar Ahmed, Sachin Kumar, Achint Kumar +1
The sub-barrier pairs of energy levels of a Hermitian one-dimensional symmetric double well potential are known to merge into one, if the inter-well distance () is increased slo…
quant-ph2016
Revisiting double Dirac delta potential
Zafar Ahmed, Sachin Kumar, Mayank Sharma +1
We study a general double Dirac delta potential to show that this is the simplest yet versatile solvable potential to introduce double wells, avoided crossings, resonances and perf…