Entangling quantum gate in trapped ions via Rydberg blockade
arXiv:1306.5953 · doi:10.1007/s00340-013-5709-6
Abstract
We present a theoretical analysis of the implementation of an entangling quantum gate between two trapped Ca ions which is based on the dipolar interaction among ionic Rydberg states. In trapped ions the Rydberg excitation dynamics is usually strongly affected by mechanical forces due to the strong couplings between electronic and vibrational degrees of freedom in inhomogeneous electric fields. We demonstrate that this harmful effect can be overcome by using dressed states that emerge from the microwave coupling of nearby Rydberg states. At the same time these dressed states exhibit long range dipolar interactions which we use to implement a controlled adiabatic phase gate. Our study highlights a route towards a trapped ion quantum processor in which quantum gates are realized independently of the vibrational modes.
submitted to the special issue "Wolfgang Paul 100"
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- Exploring the many-body dynamics near a conical intersection with trapped Rydberg ions
- Effects of long-range hopping and interactions on quantum walk in ordered and disordered lattices
- Dipole-dipole interaction driven antiblockade of two Rydberg atoms
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- Highly-polarizable ion in a Paul trap
- Exploring non-equilibrium phases of the generalized Dicke model with a trapped Rydberg ion quantum simulator
- Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms
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- Rydberg ions in coherent motional states: A new method for determining the polarizability of Rydberg ions
- Tripartite quantum Rabi model with trapped Rydberg ions
- Magic trapping of a Rydberg ion with a diminished static polarizability