Open string theory as dissipative quantum mechanics

Callan, Curtis G.; Thorlacius, Lárus

doi:10.1016/0550-3213(90)90060-q

Cited by 83 publications

(140 citation statements)

References 14 publications

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“…The results reported in this Section and in the following one can also be found in the papers by Fradkin and Tseytlin [4], by Abouelsaood, Callan, Nappi and Yost [7], and by Callan and Thorlacius [5]. However here we present an alternative derivation, making use of a direct and straightforward computation which has also the advantage of being easily compared with the standard Caldeira and Leggett formulation [3] and with the other physical contexts to be discussed in the rest of this paper.…”

Section: Quantum Dissipation In String Theorysupporting

confidence: 51%

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Vacuum instability and pair nucleation in a dissipative medium

Iengo¹

1998

Philosophical Magazine B

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We present a systematic and unifying treatment of the problem of spontaneous nucleation of particle-antiparticle pairs in a (2+1)-dimensional system due to a static and uniform electromagnetic-like field, in the presence of quantum dissipation. We first describe a direct derivation of the Caldeira-Leggett type of mechanism for quantum dissipation within the context of string theory and of the ensuing Born-Infeld action, pointing out the difference with the physical context in which vacuum decay can occur. We then evaluate the particle-antiparticle pair production rate, working out all the details of the calculation and including also the effects of a possible periodic background potential and of the Coulomb-like particle-antiparticle attraction. The former induces a dissipation-driven localization which interferes with the effect of the driving electric-like field. We also hint at a possible application to the problem of the decay of a supercurrent in a superconducting thin film due to vortex-antivortex nucleation in the presence of a pinning lattice.

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Section: Quantum Dissipation In String Theorysupporting

confidence: 51%

“…Surprisingly, quantum dissipation also appears to be built-in in the dynamics of string theory [4,5].…”

Section: Introductionmentioning

confidence: 99%

Vacuum instability and pair nucleation in a dissipative medium

Iengo¹

1998

Philosophical Magazine B

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“…It was noticed a while ago in Ref. [48] that the free massless bulk dynamics (3.9) is equivalent to the Caldeira-Leggett model of a quantum thermostat [49]. Upon fixing the boundary values X µ B (τ ) and integrating out the bulk part of the field X µ (τ, x), Eqs.…”

Section: Low-temperature Expansionmentioning

confidence: 99%

Notes on parafermionic QFTs with boundary interaction

Lukyanov

2007

Nuclear Physics B

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The main result of these notes is an analytical expression for the partition function of the circular brane model [1] for arbitrary values of the topological angle. The model has important applications in condensed matter physics. It is related to the dissipative rotator (Ambegaokar-Eckern-Schön) model [2] and describes a "weakly blocked" quantum dot with an infinite number of tunneling channels under a finite gate voltage bias. A numerical check of the analytical solution by means of Monte Carlo simulations has been performed recently in Ref. [3]. To derive the main result we study the so-called boundary parafermionic sine-Gordon model. The latter is of certain interest to condensed matter applications, namely as a toy model for a point junction in the multichannel quantum wire [4].

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“…In the case of maximal supersymmetry, the existence of such junctions as quantum mechanical bound states was argued in [24] using gauge dynamics and in [25] using the lift to M theory. The dynamics of these junctions has been explored further in [26,27]. In the presence of seven-branes, the question of whether a BPS junction exists is more subtle;…”

Section: Various Routes To M Theorymentioning

confidence: 99%

Geometric realizations of BPS states in N = 2 theories

1998

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We study the BPS spectrum of the theory on a D3-brane probe in F theory. The BPS states are realized by multi-string configurations in spacetime. Only certain configurations obeying a selection rule give rise to BPS states in the four-dimensional probe theory.Using these string configurations, we determine the spectrum of N=2 SU (2) Yang-Mills.We also explore the relation between multi-string configurations, M theory membranes and self-dual strings.3/98 *

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Open string theory as dissipative quantum mechanics

Abstract: ABSTRACT

Cited by 83 publications

References 14 publications

Vacuum instability and pair nucleation in a dissipative medium

Vacuum instability and pair nucleation in a dissipative medium

Notes on parafermionic QFTs with boundary interaction

Geometric realizations of BPS states in N = 2 theories

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