Abstract
Efficiently entangling pairs of qubits is essential to fully harness the power of quantum computing. Here, we devise an exact protocol that simultaneously entangles arbitrary pairs of qubits on a trapped-ion quantum computer. The protocol requires classical computational resources polynomial in the system size, and very little overhead in the quantum control compared to a single-pair case. We demonstrate an exponential improvement in both classical and quantum resources over the current state of the art. We implement the protocol on a software-defined trapped-ion quantum computer, where we reconfigure the quantum computer architecture on demand. Our protocol may also be extended to a wide variety of other quantum computing platforms.
Highlights
Entangling pairs of qubits is essential to fully harness the power of quantum computing
The native two-qubit gate on our trapped-ion quantum information processor (TIQIP) is implemented according to the Mølmer–Sørensen protocol[12,13,14], which induces an effective XX-Ising interaction between a pair of qubits
We implement our EASE-gate protocol on a TIQIP hosted at IonQ11, which can load and control small chains of 171Yb+ ion qubits
Summary
Entangling pairs of qubits is essential to fully harness the power of quantum computing. An efficient procedure that simultaneously implements as many two-qubit gates as possible with the least amount of resources will accelerate the process of harnessing the power of universal, programmable quantum computers.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
