en اپتیک کوانتمی، مخابرات کوانتمی و کامپیوترهای اپتیکی Quantum Optics, Quantum Communications, Quantom Computing پژوهشي Research <me<illegal tag>ta charset="UTF-8" ><span style="font-size:11pt"><span new="" roman="" style="font-family:" times=""><span style="font-weight:bold"><span style="color:#000000"><span style="font-style:normal"><span style="white-space:normal"><span style="text-decoration:none">In This paper a ground-state cooling method for bad optomechanical systems is proposed. Previous authors show that an optical cavity with equal loss and gain has a parity-time reversal (PT) symmetry. We introduced an optomechanical cavity coupled to the two modes of a PT symmetry and a passive optical cavity. A quarter-wave plate provides linear mixing interaction between the PT symmetry and passive cavities. In this study, our proposed system improved the cooling rate by utilizing two effects: energy localization and quantum interference. These two impacts increase the cooling rate while the system is red or blue-detuned. It is demonstrated that optomechanical cooling occurs in both the bad-cavity limit and the weak optomechanical coupling regime. These innovations can be attained by parameter management of the system.</span></span></span></span></span></span></span> Ground State Cooling, Optomechanical System, Parity-Time Symmetric, Quantum Interference. 161 170 http://ijop.ir/browse.php?a_code=A-10-922-1&slc_lang=en&sid=1 Zohre Mahmoudi Meimand zohre.mm@gmail.com 10031947532846004611 10031947532846004611 Yes aDepartment of Physics, University of Shahid Bahonar of Kerman, Kerman, Iran Omid Hamidi hamidi@mail.uk.ac.ir 10031947532846004612 10031947532846004612 No aDepartment of Physics, University of Shahid Bahonar of Kerman, Kerman, Iran Ali Reza Bahrampour bahrampour@sharif.edu 10031947532846004613 10031947532846004613 No bDepartment of Physics, Sharif University , Tehran, Iran