202 citations · 362 across the 6 of their papers we have counts for
3 papers · 1 filter
Rescaling multipartite entanglement measures for mixed states
Oliver Viehmann, Christopher Eltschka, Jens Siewert
A relevant problem regarding entanglement measures is the following: Given an arbitrary mixed state, how does a measure for multipartite entanglement change if general local operat…
Superradiant Phase Transitions and the Standard Description of Circuit QED
Oliver Viehmann, Jan von Delft, Florian Marquardt
We investigate the equilibrium behaviour of a superconducting circuit QED system containing a large number of artificial atoms. It is shown that the currently accepted standard des…
Polynomial invariants for discrimination and classification of four-qubit entanglement
Oliver Viehmann, Christopher Eltschka, Jens Siewert
It is well known that the number of entanglement classes in SLOCC (stochastic local operations and classical communication) classifications increases with the number of qubits and…