Quantum Fluctuations on Low Dimensional Topological Defects
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1 Quantum Fluctuations on Low Dimensional Topological Defects J. Mateos Guilarte November 2008
2 Contents 1 One-loop soliton mass shifts 2 3 4
3 Contents One-loop soliton mass shifts 1 One-loop soliton mass shifts 2 3 4
4 One-loop soliton mass shifts Object to be computed: TrK 1 2 = trtr L 2K 1 2 K = +c 2 + Q(x) + V (x) = K 0 + Q(x) + V (x) acting on (PBC boundary conditions) N ( d ) a=1 L 2 a i=1 S 1 i
5 Heat kernel/zeta function regularization methods Zeta function regularization ζ K (s) = TrK s Heat kernel, heat function, Mellin transform ( ) β + K G K (x, y; β) = 0, G K (x, y; 0) = δ(x y) Tre βk = dx G K (x, x; β) ζ K (s) = 1 Γ(s) dβ β s 1 Tr e βk 0
6 Heat kernel/zeta function regularization methods High-temperature asymptotic expansion G K (x, y; β) = G K0 (x, y; β) n=0 c n(x, y)β n G K0 (x, y; 0) = δ(x y) N c=1 [ n δ ac + (x k y k ) (δ ac k 1 2 Qac k ( x))] c cb n ( x, y; K ) = N [ c=1 δ ac Qk ac( x) k V ac ( x) ] cn 1 cb ( x, y; K ) c0 ab ( x, y; K ) = δab
7 Heat kernel/zeta function regularization methods High-temperature asymptotic expansion Tre βk = Tre βk 0 n=1 β n c n, cn ab = dx c ab n (x, x)
8 Renormalizations Zero point energy renormalization. Subtract Mass renormalization. Subtract Take the limit s 1 2 TrK s 0 = ζ K0 (s) TrK s 1 0 = ζ K0 (s + 1)
9 Conceptual kinship to the Casimir effect
10 Contents One-loop soliton mass shifts 1 One-loop soliton mass shifts 2 3 4
11 Bosonic kinks K = d 2 dx 2 + V (x), L2 (S 1 ) A. A. Izquierdo, M. A. G. Leon, W. G. Fuertes, and J. M. Guilarte Generalized zeta functions and one-loop corrections to quantum kink masses Nuclear Physics B635[PM](2002)
12 SUSY kinks One-loop soliton mass shifts M. Bordag, A. Goldhaber, P. van Nieuwenhuizen, and D. Vassilevich Heat kernels and zeta function regularization for the mass of the SUSY kink Physical Review D66 (2002)
13 Multicomponent bosonic kinks K ab = d 2 dx 2 δ ab + V ab (x), N L 2 (S 1 ) A. A. Izquierdo, M. A. G. Leon, W. G. Fuertes, and J. M. Guilarte Semi-classical mass of quantum k-component topological kinks Nuclear Physics B638[PM](2002) A. A. Izquierdo, M. A. G. Leon, W. G. Fuertes, and J. M. Guilarte One-loop corrections to classical masses of kink families Nuclear Physics B681[PM](2004) a=1
14 Fermionic fluctuations around a Nielsen-Olesen vortex M. Bordag, and I. Drozdov Fermionic vacuum energy from a Nielsen-Olesen vortex Physical Review D68(2003)
15 N = 2 SUSY vortex D. Vassilevich Quantum corrections to the mass of the supersymmetric vortex Physical Review D68 (2003) A. Rebhan, P. van Nieuwenhuizen, and R. Wimmer Nonvanishing quantum correction to the mass and central charge of the N = 2 vortex and BPS saturation Nuclear Physics B679 (2004)
16 Bosonic BPS magnetic flux lines 4 L 2 a(s 1 S 1 ) a=1 A. A. Izquierdo, M. T. Mayado, W. G. Fuertes, and J. M. Guilarte Quantum corrections to the mass of self-dual vortices Physical Review D70 (2004) (R) A. A. Izquierdo, M. T. Mayado, W. G. Fuertes, and J. M. Guilarte Quantum oscillations of self-dual Abrikosov-Nielsen-Olesen vortices Physical Review D71 (2005) A. A. Izquierdo, M. T. Mayado, W. G. Fuertes, and J. M. Guilarte One-loop mass shift formula for kinks and self-dual vortices Journal of Physics A39 (2006)
17 Semi-local strings 6 L 2 a(s 1 S 1 ) a=1 A. A. Izquierdo, M. T. Mayado, W. G. Fuertes, and J. M. Guilarte One-loop corrections to the mass of self-dual semi-local topological solitons Nuclear Physics B797[PM] (2008) A. A. Izquierdo, M. T. Mayado, W. G. Fuertes, and J. M. Guilarte One-loop fluctuations of semi-local self-dual vortices Journal of Physics A41 (2008)
18 Contents One-loop soliton mass shifts 1 One-loop soliton mass shifts 2 3 4
19 Analysis of the impact of changing the boundary conditions Heat and zeta functions with Dirichlet and Robin boundary conditions.
20 Better calibration of the errors coming from rejecting terms in the asymptotic expansion Improvement of symbolic and numerical programs implemented in Mathematica to obtain the Seeley coefficients
21 Contents One-loop soliton mass shifts 1 One-loop soliton mass shifts 2 3 4
22 Application of the method to study kink fluctuations in non-linear sigma models A. Alonso Izquierdo, M. A. Gonzalez Leon and J. Mateos Guilarte, Kinks in a massive non-linear sigma model Phys. Rev. Lett. 101: 13602, 2008 Study in this framework of non-commutative and SUSY non-commutative kinks What about BPS magnetic monopoles?
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