Monopolonium in confining phase

Monopolonium is a monopole-antimonopole bound state, whose lifetime grows as the cube of the initial diameter. Such objects are important because their decay products can be observable. Apart from the monopolonium, it is believed that the existence of an epoch when the U(1) of the electromagnetism is spontaneously broken ensures the efficient annihilation of monopoles and antimonopoles in the Universe. During this period, magnetic flux must be confined to flux tubes. Based upon the above two seemingly different ideas, we investigate the monopolonium in the confining phase. We show that the existence of the confining phase does not ensure the expected annihilation of monopoles and antimonopoles. It is important to note that the monopolonium in confining phase can also be produced from necklaces. Our analysis can therefore be extended to understand cosmological implications of brane inflationary models where cosmic necklaces or coils may be produced.