Department of Chemistry and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA.
J Chem Phys. 2010 Mar 28;132(12):121104. doi: 10.1063/1.3366522.
We propose a new entanglement switch of qubits consisting of electric dipoles oriented along or against an external electric field and coupled by the electric dipole-dipole interaction. The pairwise entanglement can be tuned and controlled by the ratio of the Rabi frequency and the dipole-dipole coupling strength. Tuning the entanglement can be achieved for one, two, and three-dimensional arrangements of the qubits. The feasibility of building such an entanglement switch is also discussed.
我们提出了一种由沿外电场方向或反向排列的电偶极子组成的量子比特纠缠开关，通过电偶极子-电偶极子相互作用进行耦合。通过调节拉比频率与偶极子-偶极子耦合强度的比值，可以对量子比特之间的两两纠缠进行调谐和控制。这种纠缠开关可以在一维、二维和三维的量子比特排列中实现。我们还讨论了构建这种纠缠开关的可行性。
