Momen, Professor ArshadHasan, M M Tarique2016-04-112016-04-1120162016-01ID 13211002http://hdl.handle.net/10361/5150This internship report is submitted in a partial fulfillment of the requirements for the degree of Bachelor of Science in Physics, 2016Cataloged from PDF version of internship report.Includes bibliographical references (page 51-52).This thesis reviews the exact numerical computation of the classical bounce solution in the false vacuum decay for a quartic scalar eld potential which is o set by an external source. The decay rate in a semiclassical analysis consists of a leading exponential contribution due to the classical action evaluated on the classical bounce solution as well as a prefactor of functional determinants due to quantum uctuations about the classical bounce solution. The equation of motion of the classical bounce solution is obtained using the Euler-Lagrange equation and is numerically solved using the shooting method and the nite-di erence method. The appendix reviews a computational technique for evaluating the functional determinants of one-dimensional operators via the Gel'fand- Yaglom theorem.52 pagesenBRAC University Internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.ComputationThesis