  The conformational and dynamical properties of active polymers in solution
are determined by the nature of the activity, and the behavior of polymers with
self-propelled, active Brownian particle-type monomers differs qualitatively
from that of polymers with monomers driven externally by colored noise forces.
We present simulation and theoretical results for polymers in solution in the
presence of external active noise. In simulations, a semiflexible bead-spring
chain is considered, in analytical calculations, a continuous linear wormlike
chain. Activity is taken into account by independent monomer/site velocities,
with orientations changing in a diffusive manner. In simulations, hydrodynamic
interactions (HI) are taken into account by the Rotne-Prager-Yamakawa tensor,
or by an implementation of the active polymer in the multiparticle collision
dynamics approach for fluids. To arrive at an analytical solution, the
preaveraged Oseen tensor is employed. The active process implies a dependence
of the stationary-state properties on HI via polymer relaxation times. With
increasing activity, HI lead to an enhanced swelling of flexible polymers, and
the conformational properties differ substantially from those of polymers with
self-propelled monomers in presence of HI or free-draining polymers. The
polymer mean square displacement is enhanced by HI. Over a wide range of time
scales, hydrodynamics leads to a subdiffusive regime of the site mean square
displacement for flexible active polymers, with an exponent of (5/7), larger
than that of the Rouse (1/2) and Zimm (2/3) models of passive polymers.
