SLINGSHOT MODEL FOR OPTIMIZING TEMPERATURE FLUCTUATION IN THROWING AND CATCHINGRYDBERG ATOM

• Main Author: Pratama Soegianto, Maynardo
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/81141
• Institution: Institut Teknologi Bandung

Recent research indicates that optical tweezers can be utilized as accelerators and decelerators for neutral atoms. This discovery holds promise for organizing and transferring Rydberg atoms as qubits carrying quantum information in neutral atom-based quantum computers. The focus of this study lies in formulating transport equations for optical tweezers so that the atoms they carry experience minimal temperature fluctuations, thus preserving the encoded information. Optimization of temperature fluctuations is conducted using generalized Euler-Lagrange equations, resulting in the finding that the third derivative with respect to time of the optical tweezers’ position remains constant, indicating the existence of two solutions: a linear acceleration solution (slingshot model) and a constant acceleration solution. Furthermore, the dynamics of atom during the transport process are modeled both classically and quantum mechanically. In the quantum perspective, atoms can be modeled as wave functions, solutions of the time-dependent Schrödinger equation, which can be solved using the dynamical invariant method, also known as the Lewis-Reisenfeld invariant. Simulation results for both classical and quantum models reveal that not all transport’s parameter variations yield high probabilities of successful atom transfer. Therefore, parameter selection is necessary to achieve high success rates in atom transport, with minimal final temperature and short transport times.