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Quantum Phases of Trapped Ions in an Optical Lattice
Roman Schmied, Tommaso Roscilde, Valentin Murg +2
We propose loading trapped ions into microtraps formed by an optical lattice. For harmonic microtraps, the Coulomb coupling of the spatial motions of neighboring ions can be used t…
Assessing non-Markovian dynamics
M. M. Wolf, J. Eisert, T. S. Cubitt +1
We investigate what a snapshot of a quantum evolution - a quantum channel reflecting open system dynamics - reveals about the underlying continuous time evolution. Remarkably, from…
Mesoscopic Spin-Boson Models of Trapped Ions
D. Porras, F. Marquardt, J. von Delft +1
Trapped ions arranged in Coulomb crystals provide us with the elements to study the physics of a single spin coupled to a boson bath. In this work we show that optical forces allow…
Entanglement generation via a completely mixed nuclear spin bath
H. Christ, J. I. Cirac, G. Giedke
We show that qubits coupled sequentially to a mesoscopic static completely mixed spin bath via the Heisenberg interaction can become highly entangled. Straightforward protocols for…
Detection of acceleration radiation in a Bose-Einstein condensate
A. Retzker, J. I. Cirac, M. B. Plenio +1
We propose and study methods for detecting the Unruh effect in a Bose-Einstein condensate. The Bogoliubov vacuum of a Bose-Einstein condensate is used here to simulate a scalar fie…
Strings, Projected Entangled Pair States, and variational Monte Carlo methods
Norbert Schuch, Michael M. Wolf, Frank Verstraete +1
We introduce string-bond states, a class of states obtained by placing strings of operators on a lattice, which encompasses the relevant states in Quantum Information. For string-b…