Publications (29)
Entropy, entanglement, and area: analytical results for harmonic lattice systems
M. B. Plenio, J. Eisert, J. Dreissig +1
We revisit the question of the relation between entanglement, entropy, and area for harmonic lattice Hamiltonians corresponding to discrete versions of real free Klein-Gordon field…
Coherent acceleration of Bose-Einstein condensates
S. Potting, M. Cramer, C. H. Schwalb +2
We present a theoretical analysis of the coherent acceleration of atomic Bose-Einstein condensates. A first scheme relies on the 'conveyor belt' provided by a frequency-chirped opt…
Reconstructing quantum states efficiently
M. Cramer, M. B. Plenio
Quantum state tomography, the ability to deduce the density matrix of a quantum system from measured data, is of fundamental importance for the verification of present and future q…
Simulating Bosonic Baths with Error Bars
Mischa P. Woods, M. Cramer, M. B. Plenio
We derive rigorous truncation-error bounds for the spin-boson model and its generalizations to arbitrary quantum systems interacting with bosonic baths. For the numerical simulatio…
Half the entanglement in critical systems is distillable from a single specimen
R. Orus, J. I. Latorre, J. Eisert +1
We establish that the leading critical scaling of the single-copy entanglement is exactly one half of the entropy of entanglement of a block in critical infinite spin chains in a g…
Thermalization under randomized local Hamiltonians
M. Cramer
Recently, there have been significant new insights concerning conditions under which closed systems equilibrate locally. The question if subsystems thermalize---if the equilibrium…