Results 11 to 20 of about 1,112 (227)

Tensor network and a black hole [PDF]

open access: yesPhysical Review D, 2013
A tensor network formalism of thermofield dynamics is introduced. The formalism relates the original Hilbert space with its tilde space by a product of two copies of a tensor network. Then, their interface becomes an event horizon, and the logarithm of the tensor rank corresponds to the black hole entropy.
Matsueda, Hiroaki   +2 more
openaire   +2 more sources

Detection and Localization of Network Black Holes [PDF]

open access: yesIEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications, 2007
Internet backbone networks are under constant flux, struggling to keep up with increasing demand. The pace of technology change often outstrips the deployment of associated fault monitoring capabilities that are built into today's IP protocols and routers.
Ramana Rao Kompella   +3 more
openaire   +2 more sources

Tracing astrophysical black hole seeds and primordial black holes with LISA-Taiji network

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT In this work, we discuss the improvement that the joint network of LISA and Taiji could provide on exploring two kinds of black hole formation mechanisms. For astrophysical origin, we consider light seed and heavy seed scenarios, and generate populations accordingly.
Yuchan Yang   +4 more
openaire   +2 more sources

Entanglement, tensor networks and black hole horizons [PDF]

open access: yesGeneral Relativity and Gravitation, 2014
We elaborate on a previous proposal by Hartman and Maldacena on a tensor network which accounts for the scaling of the entanglement entropy in a system at a finite temperature. In this construction, the ordinary entanglement renormalization flow given by the class of tensor networks known as the Multi Scale Entanglement Renormalization Ansatz (MERA ...
Molina-Vilaplana, J., Prior, J.
openaire   +3 more sources

Searching for a Black Hole in Synchronous Tree Networks

open access: yesCombinatorics, Probability and Computing, 2007
A black hole is a highly harmful stationary process residing in a node of a network and destroying all mobile agents visiting the node, without leaving any trace. We consider the task of locating a black hole in a (partially) synchronous tree network, assuming an upper bound on the time of any edge traversal by an agent.
Czyzowicz, J.   +3 more
openaire   +2 more sources

Searching for a black hole in arbitrary networks [PDF]

open access: yesProceedings of the twenty-first annual symposium on Principles of distributed computing - PODC '02, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stefan Dobrev   +3 more
openaire   +4 more sources

Securing Mobile Adhoc Networks from Black-Hole Attacks [PDF]

open access: yes, 2021
MANETs are in-secure and vulnerable to attacks, as it lacks a central trusted authority. Providing security to such a network becomes an essential task and formulate the origin of the proposed work. The proposed system attempts to secure MANETs using route validation and cryptographic techniques. One of the most crucial, and primary concerns in today’s
Fahmina Taranum, Khaleel Ur Rahman Khan
openaire   +2 more sources

Communication Black Holes in Ground Segment Networks [PDF]

open access: yesSpaceOps 2012 Conference, 2012
The ISS Columbus Ground Segment is a complex MPLS-based WAN communication network witch connects sites located in USA (NASA), Russia (RSA), France (ATV-CC), Germany (COL-CC) and several user centres across Europe (network consists of more than 17 sites).
Szücs, Gabor   +2 more
openaire   +2 more sources

Investigating on Black Holes in Segment Routing Networks: Identification and Detection

open access: yesIEEE Transactions on Network and Service Management, 2023
Network Black Holes (BHs) are logical failures that create a service disruption for a subset of traffic flows, generally due to device misconfiguration. Detection of a BH is a hard task due to its specific nature: the infrastructure is up and the disconnection affects a limited number of flows.
Marco Polverini   +5 more
openaire   +2 more sources

Avoiding Black Hole and Cooperative Black Hole Attacks in Wireless Ad hoc Networks

open access: yesCoRR, 2010
In wireless ad hoc networks, the absence of any control on packets forwarding, make these networks vulnerable by various deny of service attacks (DoS). A node, in wireless ad hoc network, counts always on intermediate nodes to send these packets to a given destination node.
Abderrahmane Baadache, Ali Belmehdi
openaire   +2 more sources

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