Zheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.
; Zheng, C (reprint author), Univ Chinese Acad Sci, Sch Phys, POB 4588, Beijing 100049, Peoples R China.
文章类型:
Article
英文摘要:
We investigate the quantum dynamics of the decay of a multiple-component positronium condensate into pairs of photons. A positronium atom has four internal spin states which are interconvertible through s-wave interactions. The quantum fields of all spin states of positroniums and photons are simulated from first principle in quasi-one-dimensional system using the truncated Wigner method. This method warrants us a full treatment of the depletion of positronium fields and the spin mixing induced by s-wave collisions between positronium atoms. Particularly, it yields the momentum spectrum of the emitted photons and the photon-photon correlations.
National Natural Science Foundation of China [11434011, 11674334, 11421063, 11674393]
; National Key Basic Research Special Foundation of China [2012CB922104]
; Fundamental Research Funds for the Central Universities
; Research Funds of Renmin University of China [16XNLQ03, 17XNH054]
Zheng, C,Zhang, P,Yi, S. Photon Emissions from a Spinor Bose-Einstein Condensate of Positroniums[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2017,68(2):236-244.
