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Showing 2017 · quant-phShow all
3 papers · 2 filters
quant-ph2017★ 9 cited
Area Law Violations and Quantum Phase Transitions in Modified Motzkin Walk Spin Chains
Fumihiko Sugino, Pramod Padmanabhan
Area law violations for entanglement entropy in the form of a square root has recently been studied for one-dimensional frustration-free quantum systems based on the Motzkin walks…
quant-ph2017★ 3 cited
Forgeable quantum messages in arbitrated quantum signature schemes
Taewan Kim, Hyang-Sook Lee, Soojoon Lee
Recently, the concept on `forgeable quantum messages' in arbitrated quantum signature schemes was introduced by T. Kim et al. [Phys. Scr., 90, 025101 (2015)], and it has been shown…
quant-ph2017★ 6 cited
Reconfiguration of quantum states in -symmetric quasi-one dimensional lattices
Jung-Wan Ryu, Nojoon Myoung, Hee Chul Park
We demonstrate mesoscopic transport through quantum states in quasi-1D lattices maintaining the combination of parity and time-reversal symmetries by controlling energy gain and lo…