The acceleration of the universe, a challenge for string theory | Zendy

Willy Fischler | Zendy; Amir Kashani-Poor | Zendy; Robert McNees | Zendy; Sònia Paban | Zendy

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The acceleration of the universe, a challenge for string theory

Author(s) -

Willy Fischler,

Amir Kashani-Poor,

Robert McNees,

Sònia Paban

Publication year - 2001

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2001/07/003

Subject(s) - quintessence , physics , string theory , de sitter universe , acceleration , theoretical physics , string (physics) , universe , event (particle physics) , mathematical physics , classical mechanics , cosmology , dark energy , astrophysics

Recent astronomical observations indicate that the universe is accelerating.We argue that generic quintessence models that accommodate the present dayacceleration tend to accelerate eternally. As a consequence the resultingspacetimes exhibit event horizons. Hence, quintessence poses the same problemsfor string theory as asymptotic de Sitter spaces.Comment: JHEP, LaTeX, 12 pages, 4 figures. Added a reference, corrected typo

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