# Generalized Unitary Coupled Cluster Wave functions for Quantum Computation.

@article{Lee2019GeneralizedUC, title={Generalized Unitary Coupled Cluster Wave functions for Quantum Computation.}, author={Joonho Lee and William J. Huggins and Martin Head‐Gordon and K. Birgitta Whaley}, journal={Journal of chemical theory and computation}, year={2019}, volume={15 1}, pages={ 311-324 } }

We introduce a unitary coupled-cluster (UCC) ansatz termed k-UpCCGSD that is based on a family of sparse generalized doubles operators, which provides an affordable and systematically improvable unitary coupled-cluster wave function suitable for implementation on a near-term quantum computer. k-UpCCGSD employs k products of the exponential of pair coupled-cluster double excitation operators (pCCD), together with generalized single excitation operators. We compare its performance in both… Expand

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