We propose a theoretical scheme to enhance quantum coherence and obtain steady-state coherence by combining quantum feedback control and noise-assisted preparation. We investigate the effects of quantum-jump-based feedback control and noise field on the quantum coherence and excited-state population between two atoms inside an optical cavity where a noise field drives one. and the oth... https://www.pomyslnaszycie.com/up-in-smoke-thorax-fr-fleece-welding-hoodie-black-black-for-sale/