  We study dissipative dynamics and a magnetic response of two coupled flux
qubits interacting with a high quality tank in the framework of the impedance
measurement technique (IMT). It is shown that the observation of the difference
between a sum of IMT signals from separated qubits and the signal from the
system when both qubits are in the degeneracy point (IMT deficit) implies
immediately a formation of the entangled two-qubit eigenstates.
