73 citations · 104 across the 5 of their papers we have counts for
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Phase transitions and localizable entanglement in cluster-state spin chains with Ising couplings and local fields
Stein Olav Skrøvseth, Stephen D. Bartlett
We consider a one-dimensional spin chain for which the ground state is the cluster state, capable of functioning as a quantum computational wire when subjected to local adaptive me…
Entanglement and its applications in systems with many degrees of freedom
Stein Olav Skrøvseth
Entanglement are the non-local correlations permitted by quantum theory, believed to play a fundamental role in a quantum computer. We have investigated these correlations in a num…
Thermalization through unitary evolution of pure states
Stein Olav Skrøvseth
The unitary time evolution of a critical quantum spin chain with an impurity is calculated, and the entanglement evolution is shown. Moreover, we show that the reduced density matr…
Entanglement properties of quantum spin chains
Stein Olav Skrøvseth
We investigate the entanglement properties of a finite size 1+1 dimensional Ising spin chain, and show how these properties scale and can be utilized to reconstruct the ground stat…
Entanglement in bosonic systems
Stein Olav Skrøvseth
We present a technique to resolve a Gaussian density matrix and its time evolution through known expectation values in position and momentum. Further we find the full spectrum of t…