Simulating nanoscale NMR problems on a Co-Design quantum computer, part I

Nitrogen-vacancy (NV) color centers in diamond can be used as quantum sensors in the context of nanoscale nuclear magnetic resonance (NMR) experiments. Certain microwave radiation patterns can drive a selective coupling between NV and nearby nuclei to hyperpolarize the nuclear spins. 

 

Simulating the hyperpolarization process is a demanding task when the number of nuclei is large and they interact with each other. In this talk we present a quantum algorithm that simulates the process on a quantum computer. In particular we investigate how the trotterized time evolution must be adapted to simulate pulsed driving schemes such as the XY8 and PulsPol. These driving sequences act as effective dynamical decoupling techniques reducing the effect of dephasing noise.

 

Part II of this talk will discuss SWAP patterns and optimized QPU architectures for this algorithm. Some hardware details to implement the algorithm on a superconducting chip are presented in “A Co-Design star-architecture superconducting chip”.