TY - JOUR ID - 1701 TI - Excitation transfer in a three-site spin chain; global vs local approach JO - Iranian Journal of Physics Research JA - IJPR LA - en SN - 1682-6957 AU - Memarzadeh, L AD - Department of Physics, Sharif University of Technology, Tehran, Iran Y1 - 2021 PY - 2021 VL - 21 IS - 2 SP - 365 EP - 376 KW - open quantum systems KW - transfer in spin chain DO - 10.47176/ijpr.21.2.21177 N2 - We study excitation transfer in a spin chain in presence of noise. To model noise, we assume that each ‎qubit of the spin chain is interacting with a Bosonic environment and has Markovian evolution. ‎We derive the explicit form of master equation both in global and local approaches. Comparing the ‎results of each approach, we discuss the noise effect on excitation transfer and in addition to that we ‎show that the results of local approach are not a limiting case of global approach‎.‎‎ UR - https://ijpr.iut.ac.ir/article_1701.html L1 - https://ijpr.iut.ac.ir/article_1701_ad08122331dffb7a869cb52d0f3f6667.pdf ER -