The Cosmological Constant Problems (Talk given at Dark Matter 2000, February, 2000)

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dc.creatorWeinberg, Steven
dc.date2000-05-12
dc.date.accessioned2026-07-07T01:53:31Z
dc.date.available2026-07-07T01:53:31Z
dc.descriptionThe old cosmological constant problem is to understand why the vacuum energy is so small; the new problem is to understand why it is comparable to the present mass density. Several approaches to these problems are reviewed. Quintessence does not help with either; anthropic considerations offer a possibility of solving both. In theories with a scalar field that takes random initial values, the anthropic principle may apply to the cosmological constant, but probably to nothing else.
dc.description10 pages, Latex
dc.identifierhttps://arxiv.org/abs/astro-ph/0005265
dc.identifierhttp://arxiv.org/abs/astro-ph/0005265
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/996
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleThe Cosmological Constant Problems (Talk given at Dark Matter 2000, February, 2000)
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