Tachyon Matter

By Ashoke Sen. 2002

927 citations recorded by the source corpus.

It is shown that classical decay of unstable D-branes in bosonic and superstring theories produces pressureless gas with non-zero energy density. The energy density is stored in the open string fields, even though around the minimum of the tachyon potential there are no open string degrees of freedom. We also give a description of this phenomenon in an effective field theory.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/81915e50365795800c4c6a53c28f675093075ee0

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In Astronomy and Astrophysics

1. Y. Nakayama
2. Ashoke Sen
3. L. Rastelli
4. B. Zwiebach
5. J. Maldacena
6. D. Gaiotto
7. T. Takayanagi
8. E. Witten

In Nuclear and High Energy Physics

1. Y. Nakayama
2. Ashoke Sen
3. L. Rastelli
4. D. Gaiotto
5. J. Maldacena
6. E. Witten
7. B. Zwiebach
8. N. Seiberg

Citations in the corpus

• Tachyons, scalar fields, and cosmology (2003, background): “Now, let us suppose that the matter content of the universe is modeled by a homogeneous tachyon field T (t) described by Sen’s Lagrangian density [6, 7]: L = −V (T ) √”
• Field Theory of Tachyon Matter (2002, methodology): “This is given by[3, 4](2) p = −Ke−αx0 , (1)”
• Dynamics with Infinitely Many Time Derivatives and Rolling Tachyons (2002, methodology): “Motivated by the recent work of Sen on tachyon matter [9, 10, 11] we examine the rolling of the tachyon down its potential.”
• Rolling tachyons and decaying branes (2002, neutral): “The standard remedy is to add also the conjugate operator and so consider perturbations of the form T ( ~X) = λ cos(~k · ~X) = λ 2 (ei ~k· ~X + e−i ~k· ~X) ; ~k2 = 1 .”
• Closed strings as imaginary D-branes (2003, background): “Before discussing a heuristic mechanism that supports this expectation, we would like to point out that for a = 2π the state |W 〉 has all the features to be identified with ‘tachyon matter’ [3, 4].”
• A matrix model dual of type 0B string theory in two dimensions (2003, neutral): “1E-mail: takayana@wigner.harvard.edu 2E-mail: nick@legendre.harvard.edu”
• Analytic solutions for marginal deformations in open string field theory (2007, background): “It would be very interesting to calculate the pressure of our exact solution and check whether it tends to zero in the infinite future, as would be expected from Sen’s analysis of tachyon matter [24, 1].”
• Inflation from a tachyon fluid (2002, background): “In this brief note, following Gibbons [3], we investigate whether some form of Sen’s tachyonic matter [1, 2] might provide the necessary ingredients for a phase of inflationary expansion in the early universe.”
• Coupling of rolling tachyon to closed strings (2002, methodology): “In [1, 2, 4], he has also constructed a boundary state corresponding to the solution.”
• Open String Creation by S-Branes (2002, background): “[14] A. Sen, “Time evolution in open string theory,” hep-th/0207105.”