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quant-ph2011★ 41 cited
Exploiting boundary states of imperfect spin chains for high-fidelity state transfer
M. Bruderer, K. Franke, S. Ragg +2
We study transfer of a quantum state through XX spin chains with static imperfections. We combine the two standard approaches for state transfer based on (i) modulated couplings be…
quant-ph2011★ 31 cited
Noninvasiveness and time symmetry of weak measurements
Adam Bednorz, Kurt Franke, Wolfgang Belzig
Measurements in classical and quantum physics are described in fundamentally different ways. Nevertheless, one can formally define similar measurement procedures with respect to th…