Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalised Uncertainty Relations and the Problem of Dark Energy   We outline a new model in which generalised uncertainty relations, that
govern the behaviour of microscopic world, and dark energy, that determines the
large-scale evolution of the Universe, are intrinsically linked via the quantum
properties of space-time. In this approach the background is treated as a
genuinely quantum object, with an associated state vector, and additional
fluctuations of the geometry naturally give rise to the extended generalised
uncertainty principle (EGUP). An effective dark energy density then emerges
from the field that minimises the modified uncertainty relations. These results
are obtained via modifications of the canonical quantum operators, but without
modifications of the canonical Heisenberg algebra, allowing many well known
problems associated with existing GUP models to be circumvented.

19
The categories of this paper are: eess
3
The categories of this paper are: physics
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph