Abstract
An attempt is made to determine the difference between Bose–Einstein condensation of particles and quasiparticles. An equation is obtained for the number of particles in a Bose–Einstein condensate as a function of the total number of particles in the system. This equation is also written for quasiparticles taking account of their creation by external pumping and the presence of equilibrium thermal excitations in the system. Analyzing both equations, the chemical potential of the pumped quasiparticles and their number in the condensate are found as a function of the pumping intensity. A condition under which the Bose–Einstein condensation of low-energy quasiparticle excitations starts and occurs at any, including quite high, temperatures is found.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
