228 citations · 565 across the 12 of their papers we have counts for
4 papers · 1 filter
Topology of Entanglement Evolution of Two Qubits
Dong Zhou, Gia-Wei Chern, Jianjia Fei +1
The dynamics of a two-qubit system is considered with the aim of a general categorization of the different ways in which entanglement can disappear in the course of the evolution,…
Suppression of Decoherence and Disentanglement by the Exchange Interaction
Amrit De, Alex Lang, Dong Zhou +1
Entangled qubit pairs can serve as a quantum memory or as a resource for quantum communication. The utility of such pairs is measured by how long they take to disentangle or decohe…
Disappearance of entanglement: a topological point of view
Dong Zhou, Robert Joynt
We give a topological classification of the evolution of entanglement, particularly the different ways the entanglement can disappear. Four categories exhaust all possibilities giv…
Two-particle quantum walks applied to the graph isomorphism problem
John King Gamble, Mark Friesen, Dong Zhou +2
We show that the quantum dynamics of interacting and noninteracting quantum particles are fundamentally different in the context of solving a particular computational problem. Spec…