TY - JOUR

T1 - Variable-tension lightlike brane as a gravitational source of traversable Misner-Wheeler-type wormholes

AU - Guendelman, Eduardo

AU - Kaganovich, Alexander

AU - Nissimov, Emil

AU - Pacheva, Svetlana

N1 - Funding Information:
E.N. and S.P. are supported by European RTN network “Forces-Universe” (contract No. MRTN-CT-2004-005104). They also received partial support from Bulgarian NSF grants F-1412/04 and DO 02-257. Finally, all of us acknowledge support of our collaboration through the exchange agreement between the Ben-Gurion University of the Negev (Beer-Sheva, Israel) and the Bulgarian Academy of Sciences.

PY - 2009/3/30

Y1 - 2009/3/30

N2 - Consistent Lagrangian description of variable-tension lightlike p-branes (LL-branes) is presented in two equivalent forms - a Polyakov-type formulation and a dual to it Nambu-Goto-type formulation. An important and non-standard characteristic feature of the LL-branes is that the brane tension appears as a non-trivial additional dynamical degree of freedom. We consider properties of p = 2 LL-brane dynamics (as a test brane) in D = 4 Kerr or Kerr-Newman gravitational backgrounds in some detail. It is shown that the LL-brane automatically positions itself on the horizon and rotates along with the same angular velocity. Finally, we construct explicitly a traversable wormhole of Misner-Wheeler type based on a Reissner-Nordström geometry. This wormhole is constructed as a self-consistent solution of the electrically sourceless Einstein-Maxwell system in the D = 4 bulk interacting with a LL-brane. The pertinent wormhole throat is located precisely at the LL-brane sitting on the outer Reissner-Nordström horizon with the Reissner-Nordström mass and charge being functions of the dynamical LL-brane tension.

AB - Consistent Lagrangian description of variable-tension lightlike p-branes (LL-branes) is presented in two equivalent forms - a Polyakov-type formulation and a dual to it Nambu-Goto-type formulation. An important and non-standard characteristic feature of the LL-branes is that the brane tension appears as a non-trivial additional dynamical degree of freedom. We consider properties of p = 2 LL-brane dynamics (as a test brane) in D = 4 Kerr or Kerr-Newman gravitational backgrounds in some detail. It is shown that the LL-brane automatically positions itself on the horizon and rotates along with the same angular velocity. Finally, we construct explicitly a traversable wormhole of Misner-Wheeler type based on a Reissner-Nordström geometry. This wormhole is constructed as a self-consistent solution of the electrically sourceless Einstein-Maxwell system in the D = 4 bulk interacting with a LL-brane. The pertinent wormhole throat is located precisely at the LL-brane sitting on the outer Reissner-Nordström horizon with the Reissner-Nordström mass and charge being functions of the dynamical LL-brane tension.

KW - Black hole's horizon "straddling"

KW - Dynamical brane tension

KW - Non-Nambu-Goto lightlike p-branes

KW - Traversable Misner-Wheeler wormholes

UR - http://www.scopus.com/inward/record.url?scp=61849133912&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2009.02.048

DO - 10.1016/j.physletb.2009.02.048

M3 - Article

AN - SCOPUS:61849133912

SN - 0370-2693

VL - 673

SP - 288

EP - 292

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -