On the Chemical Potential of D-instantons in C = 0 Noncritical String Theory

نویسندگان

  • Nobuyuki Ishibashi
  • Atsushi Yamaguchi
چکیده

We study the chemical potential of D-instantons in c = 0 noncritical string theory. In a recent work(hep-th/0405076), it was shown that the chemical potential can be calculated using the one matrix model. The calculation was done using the method of orthogonal polynomials and the authors obtained a universal value in the double scaling limit. We present an alternative method to calculate this value. [email protected] [email protected]

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nonperturbative Effect in c = 1 Noncritical String Theory and Penner Model

We derive the effect of instantons in the Penner model. It is known that the free energies of the Penner model and the c = 1 noncritical string at self-dual radius agree in a suitable double scaling limit. On the other hand, the instanton in the matrix model describes a nonperturbative effect in the noncritical string theory. We study the correspondence between the instantons in the Penner mode...

متن کامل

Instantons in c = 0 CSFT

Following the recent work of hep-th/0405076 we discuss the emergence of D-brane instanton solutions in c=0 noncritical string theory. Our emphasis is on finding the D-instanton effects in a field theoretic setting. Using the framework of single matrix collective field theory (CSFT) we exhibit the appearance of such solutions. Some subtle issues regarding the form of the field theory equations, ...

متن کامل

Comments on D - Instantons in c < 1 Strings

We suggest that the boundary cosmological constant ζ in c < 1 unitary string theory be regarded as the one-dimensional complex coordinate of the target space on which the boundaries of world-sheets can live. From this viewpoint we point out that soliton-like solutions appearing in string equations can be interpreted as analogues of D-instantons. It turns out that our operator formalism develope...

متن کامل

Loops versus Matrices - The Nonperturbative Aspects of Noncritical String -

The nonperturbative aspects of string theory are explored for noncritical string in two distinct formulations, loop equations and matrix models. The effects corresponding to the D-brane in these formulations are especially investigated in detail. It is shown that matrix models can universally yield a definite value of the chemical potential for an instanton while loop equations cannot. This imp...

متن کامل

String Field Theory of c ≤ 1 Noncritical Strings Nobuyuki Ishibashi and Hikaru Kawai

We construct a string field Hamiltonian for a noncritical string theory with the continuum limit of the Ising model or its generalization as the matter theory on the worldsheet. It consists of only three string vertices as in the case for c = 0. We also discuss a general consistency condition that should be satisfied by this kind of string field Hamiltonian.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005