Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmological Constant Seesaw in Quantum Cosmology   Recently a phenomenological relationship for the observed cosmological
constant has been discussed by Motl and Carroll in the context of treating the
cosmological constant as a $2\times 2$ matrix but no specific realization of
the idea was provided. We realize a cosmological constant seesaw mechanism in
the context of quantum cosmology. The main observation used is that a positive
cosmological constant plays the role of a $Mass^2$ term in the Wheeler DeWitt
(WDW) equation. Modifying the WDW equation to include a coupling between two
universes, one of which has planck scale vacuum energy and another which has
vacuum energy at the supersymmetry breaking scale before mixing, we obtain the
relation $\lambda = (10TeV)^8/M_{Pl}^4$ in a similar manner to the usual seesaw
mechanism. We discuss how the picture fits in with our current understanding of
string/M-theory cosmologies. In particular we discuss how these results might
be extended in the context of exact wave functions of the universe derived from
certain string models.

29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an