Dipolar quantum logic for freely-rotating trapped molecular ions

Abstract

We consider the practical feasibility of using the direct, electric dipole-dipole interaction between co-trapped molecular ions for robust quantum logic without the need for static polarizing fields. The use of oscillating dipole moments, as opposed to static electric dipoles, dynamically decouples the dipoles from laboratory fields, including the electric fields of the trap itself. Further, this implementation does not require quantum control of motion, potentially removing a major roadblock to ion trap quantum computing scalability. Since the polarizing field is electromagnetic radiation, even pairs of states with splittings in the THz regime can be fully polarized.

References in corpus (9)

• High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
• Experimental Quantum Computations on a Topologically Encoded Qubit
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Dipolar Exchange Quantum Logic Gate with Polar Molecules
• A long-lived Zeeman trapped-ion qubit
• Synthesis of mixed hypermetallic oxide BaOCa${}^{+}$ from laser-cooled reagents in an atom-ion hybrid trap
• Distance scaling of electric-field noise in a surface-electrode ion trap
• Fractional Quantum Hall States of Rydberg Polaritons
• A Method for Preparation and Readout of Polyatomic Molecules in Single Quantum States

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