Matrix Membrane Big Bangs and D-brane Production

Jeremy Michelson; Sumit R. Das

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Matrix Membrane Big Bangs and D-brane Production

Sumit R. Das, Jeremy Michelson

High Energy Physics - Theory · Submitted 10 Feb 2006

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim However, the Kaluza Klein modes (which can be thought of as states of (p,q) strings in the original IIB theory) can be generically produced in pairs in both pp wave and flat backgrounds in the presence of time dependence.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.31 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.41 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We construct Matrix Membrane theory in pp wave backgrounds that have a null linear dilaton in Type IIB string theory. Such backgrounds can serve as toy models of big bang cosmologies. At late times only abelian degrees of freedom survive, and if the Kaluza-Klein modes along one of the directions of the membrane decouple, standard perturbative strings emerge. Near the ``big bang'', non-abelian configurations of fuzzy ellipsoids are present, as in the Type IIA theories. A generic configuration of these shrink to zero volume at late times. However, the Kaluza Klein modes (which can be thought of as states of (p,q) strings in the original IIB theory) can be generically produced in pairs in both pp wave and flat backgrounds in the presence of time dependence. Indeed, if we require that at late times the theory evolves to the perturbative string vacuum, these modes must be prepared in a squeezed state with a thermal distribution at early times.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We construct Matrix Membrane theory in pp wave backgrounds that have a null linear dilaton in Type IIB string theory.	contribution 1.00	0.95	0.07	asserted 1.00
s1	Such backgrounds can serve as toy models of big bang cosmologies.	background 0.59	0.14	0.06	hedged possibility 0.96
s2	At late times only abelian degrees of freedom survive, and if the Kaluza-Klein modes along one of the directions of the membrane decouple, standard perturbative strings emerge.	result 0.94	0.68	0.17	asserted 0.96
s3	Near the ``big bang'', non-abelian configurations of fuzzy ellipsoids are present, as in the Type IIA theories.	result 0.96	0.65	0.09	asserted 1.00
s4	A generic configuration of these shrink to zero volume at late times.	result 1.00	0.78	0.12	asserted 0.98
s5	However, the Kaluza Klein modes (which can be thought of as states of (p,q) strings in the original IIB theory) can be generically produced in pairs in both pp wave and flat backgrounds in the presence of time dependence.	result 0.97	0.69	0.40	asserted 0.73
s6	Indeed, if we require that at late times the theory evolves to the perturbative string vacuum, these modes must be prepared in a squeezed state with a thermal distribution at early times.	result 0.56	0.71	0.28	asserted 0.96

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.93.

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arXiv listing abstract v2

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The paper

Original abstract

We construct Matrix Membrane theory in pp wave backgrounds that have a null linear dilaton in Type IIB string theory. Such backgrounds can serve as toy models of big bang cosmologies. At late times only abelian degrees of freedom survive, and if the Kaluza-Klein modes along one of the directions of the membrane decouple, standard perturbative strings emerge. Near the ``big bang'', non-abelian configurations of fuzzy ellipsoids are present, as in the Type IIA theories. A generic configuration of these shrink to zero volume at late times. However, the Kaluza Klein modes (which can be thought of as states of (p,q) strings in the original IIB theory) can be generically produced in pairs in both pp wave and flat backgrounds in the presence of time dependence. Indeed, if we require that at late times the theory evolves to the perturbative string vacuum, these modes must be prepared in a squeezed state with a thermal distribution at early times.

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References

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Matrix String Description of Cosmic Singularities in a Class of Time-dependent Solutions
hep-th 2006-03 conditional novelty 6.0 of 10

A class of 1/2 BPS time-dependent supergravity solutions, including backgrounds with four-form flux, can be carried into weak-coupling matrix string theory, with three example families satisfying the decoupling conditions.
Matrix Model in a Class of Time Dependent Supersymmetric Backgrounds
hep-th 2006-03 conditional novelty 6.0 of 10

A matrix model for a class of time-dependent supersymmetric M-theory backgrounds is constructed by membrane regularization, and the action is argued to be exact to all orders in fermions, with fuzzy sphere solutions t...
Toward the End of Time
hep-th 2006-03 conditional novelty 6.0 of 10

A one-loop calculation in the null-brane matrix model produces an attractive potential and strong particle production near the singularity, suggesting that spacetime dissolves into a gluon phase.
Gravitational Fermion Production in Inflationary Cosmology
astro-ph.CO 2011-09 conditional novelty 4.0 of 10

For fermions lighter than the inflationary Hubble rate, gravitational production gives a per-mode Bogoliubov amplitude |beta_k|^2 of order 1/2, yielding a relic density Omega h^2 of roughly 3 (m/10^11 GeV)^2 (T_rh/10^9 GeV).

How the literature uses it

5 arXiv papers cite this in 10 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 9 sentences without a confident label

Cites it as background 1 paper

Some related ideas were pointed out in [ref] .

Observer dependent D-brane for strings propagating in pp-wave time dependent background · Conclusions · 0.87

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