ALEXANDRIA, Va., July 7 -- United States Patent no. 12,675,723, issued on July 7, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Reduced density matrix estimation for particle-number-conserving fermion system" was invented by Guang Hao Low (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computing device including one or more processing devices configured to receive classical shadow measurement results associated with a fermion wavefunction. The fermion wavefunction may describe a particle-number-conserving fermion system. The one or more processing devices may compute an estimated k-reduced density matrix (k-RDM), where k is a number of ladder operator pairs. Computing...