On a nonperturbative vacuum for the open bosonic string

Kostelecký, V. Alan; Samuel, Stuart

doi:10.1016/0550-3213(90)90111-p

Cited by 240 publications

(353 citation statements)

References 47 publications

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“…In the → ∞ limit, after replacing − ln φ − 1/2 by V (φ)/φ, we see that the relative coefficient between the last two terms in (6.9) is a factor of two. Examining the gauge-fixed string field action in [17], one finds the same relative coefficient between the terms.…”

Section: Jhep09(2000)029mentioning

confidence: 87%

“…In the gauge fixed action there are, in addition to the term discussed in the previous subsection, terms of the form [17] (∂ µ ∂ ν φ) A µ A ν .…”

Section: Jhep09(2000)029mentioning

confidence: 99%

“…Note that for the φ 3 (V 3 ) model, the coefficient β differs from the corresponding coefficient in the string field theory [17]. Now consider A µ fluctuations, where µ is an index along the brane.…”

Section: The Dynamics Of the Gauge Field On The Branementioning

confidence: 99%

“…For components along the brane, there seems to be a neat generalization of the gauge fixed action [17] for all values of . For components perpendicular to the brane, the generalization does not appear to be as nice, although it improves in the limit → ∞.…”

Section: Adding Gauge Fieldsmentioning

confidence: 99%

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Field theory models for tachyon and gauge field string dynamics

Minahan

Zwiebach

2000

J. High Energy Phys.

107

104

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In hep-th/0008227, the unstable lump solution of φ 3 theory was shown to have a spectrum governed by the solvable Schroedinger equation with the = 3 reflectionless potential and was used as a model for tachyon condensation in string theory. In this paper we study in detail an → ∞ scalar field theory model whose lump solution mimics remarkably the string theory setup: the original field theory tachyon and the lump tachyon have the same mass, the spectrum of the lump consists of equally spaced infinite levels, there is no continuous spectrum, and nothing survives after tachyon condensation. We also find exact solutions for lumps with codimension ≥ 2, and show that that their tensions satisfy 1 2π Tp T p+1 = e √ 2π ≈ 1.08. We incorporate gauge fixed couplings to a U(1) gauge field which preserve solvability and result in massless gauge fields on the lump.

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Section: Jhep09(2000)029mentioning

confidence: 87%

“…In the gauge fixed action there are, in addition to the term discussed in the previous subsection, terms of the form [17] (∂ µ ∂ ν φ) A µ A ν .…”

Section: Jhep09(2000)029mentioning

confidence: 99%

Section: The Dynamics Of the Gauge Field On The Branementioning

confidence: 99%

Section: Adding Gauge Fieldsmentioning

confidence: 99%

See 2 more Smart Citations

Field theory models for tachyon and gauge field string dynamics

Minahan

Zwiebach

2000

J. High Energy Phys.

107

104

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“…In the familiar cubic version of open string field theory [2] (and its nonpolynomial extension to open superstring field theory [3]) the phenomenon of tachyon condensation is really a condensation of a string field ; the tachyon, along with an infinite number of scalar modes acquire expectation values [4]- [6]. On the other hand, in boundary string field theory (B-SFT) [7,8] -a much less developed version of string field theory incorporating a certain degree of background independence, tachyon condensation involves the tachyon field alone.…”

Section: Introductionmentioning

confidence: 99%

Gauge fields and fermions in tachyon effective field theories

Minahan

Zwiebach

2001

J. High Energy Phys.

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In this paper we incorporate gauge fields into the tachyon field theory models for unstable D-branes in bosonic and in type-II string theories. The chosen couplings yield massless gauge fields and an infinite set of equally spaced massive gauge fields on codimension one branes. A lack of a continuum spectrum is taken as evidence that the stable tachyon vacuum does not support conventional gauge excitations. For the bosonic string model we find two possible solvable couplings, one closely related to Born-Infeld forms and the other allowing a detailed comparison to the open string modes on bosonic D-branes. We also show how to include fermions in the type-II model. They localize correctly on stable codimension one branes resulting in bose-fermi degeneracy at the massless level. Finally, we establish the solvability of a large class of models that include kinetic terms with more than two derivatives.

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The Tachyon Potential in Superstring Field Theory

Smet

2001

Fortschr. Phys.

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On a nonperturbative vacuum for the open bosonic string

Cited by 240 publications

References 47 publications

Field theory models for tachyon and gauge field string dynamics

Field theory models for tachyon and gauge field string dynamics

Gauge fields and fermions in tachyon effective field theories

The Tachyon Potential in Superstring Field Theory

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