  Quantum entanglement is the key to many applications like quantum key
distribution, quantum teleportation, and quantum sensing. However, reliably
generating quantum entanglement in macroscopic systems has proved to be a
challenge. Here, we present a detailed analysis of ponderomotive entanglement
generation which utilizes optomechanical interactions to create quantum
correlations. We numerically calculate an entanglement measure -- the
logarithmic negativity -- for the quantitative assessment of the entanglement.
Experimental limitations, including thermal noise and optical loss, from
measurements of an existing experiment were included in the calculation, which
is intractable to solve analytically. This work will play an important role in
the development of ponderomotive entanglement devices.

Quantum Physics;Optics