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Closed string disk amplitudes in the pure spinor formalism

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1 Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep02(2021)206

Abstract: We evaluate closed string disk amplitudes in the pure spinor formalism. We focus on low point functions (two- and one-point functions) but our analysis is also relevant for higher n -point functions. Amongst others we… read more here.

Keywords: string disk; spinor formalism; pure spinor; closed string ... See more keywords

Intrinsic non-commutativity of closed string theory

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0 Published in 2017 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2017)060

Abstract: A bstractWe show that the proper interpretation of the cocycle operators appearing in the physical vertex operators of compactified strings is that the closed string target is noncommutative. We track down the appearance of this… read more here.

Keywords: non commutativity; commutativity closed; string theory; commutativity ... See more keywords

Closed string deformations in open string field theory. Part II. Superstring

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1 Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)048

Abstract: Abstract This is the second paper of a series of three. We construct effective open-closed superstring couplings by classically integrating out massive fields from open superstring field theories coupled to an elementary gauge invariant tadpole… read more here.

Keywords: field; small hilbert; open closed; closed string ... See more keywords

Closed string deformations in open string field theory. Part III. $$ \mathcal{N} $$ = 2 worldsheet localization

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1 Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)049

Abstract: Abstract In this paper, which is the last of a series including [1, 2] we first verify that the two open-closed effective potentials derived in the previous paper from the WZW theory in the large… read more here.

Keywords: string field; deformations open; open string; closed string ... See more keywords

Post-Newtonian Feasibility of the Closed String Massless Sector.

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1 Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.129.061603

Abstract: We perform post-Newtonian analysis of double field theory as a test of string theory in gravitational sector against observations. We identify the Eddington-Robertson-Schiff parameters β_{PPN}, γ_{PPN} with the charges of electric H flux and dilaton… read more here.

Keywords: post newtonian; sector; feasibility closed; closed string ... See more keywords