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The stability of «Q balls» in Rosen’ bimetric theory of gravitation

Устойчивость «Q шаров» в би-метрической теории гравитации Розена

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Il Nuovo Cimento B (1971-1996)

Summary

The approximate solution of a SO2 theory of two scalar fields in the bimetric theory of gravitation is discussed. Coleman's suggestion that suchQ matter can be stabilized by an internal rotation in SO2 space leads to stability criteria for theQ matter before the breaking of the SO2 global symmetry. The two distinct masses lead to two different criteria of stability for theQ ball. The problem of the cosmological constant is left as an unanswered and pressing question in the bimetric theory.

Riassunto

Si esamina la soluzione approssimata di una teoria SO2 di due campi scalari nella teoria bimetrica della gravitazione. L’ipotesi di Coleman che tale materiaQ possa essere stabilizzata da una rotazione interna nello spazio SO2 porta a criteri di stabilità per la materiaQ prima della rottura della simmetria globale SO2. Le due masse distinte portano a due diversi criteri di stabilità per la sferaQ. Il problema della costante cosmologica rimane un problema irrisolto e pressante nella teoria bimetrica.

Резюме

Обсуждается приближенное решениоSU 2 теории двух скаярных полей в би-метрической теории гравитации. Предположение Колемана, что такоеQ вещество может быть устойчивым за счет внутреннего вращения вSU 2 пространстве, приводит к критерию устойчивости дляQ вещества до нарушения глобальной симметрии. Две различные массы приводят к двум различным критериям устойчивости дляQ шара. Проблема космлогической постоянной остается не решенной в би-метрической теории.

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References

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Wolf, C. The stability of «Q balls» in Rosen’ bimetric theory of gravitation. Nuov Cim B 102, 441–449 (1988). https://doi.org/10.1007/BF02728777

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