  This paper investigates an efficient and practical information reconciliation
method in the case where two parties have access to correlated continuous
random variables. We show that reconciliation is a special case of channel
coding and that existing coded modulation techniques can be adapted for
reconciliation. We describe an explicit reconciliation method based on LDPC
codes in the case of correlated Gaussian variables. We believe that the
proposed method can improve the efficiency of quantum key distribution
protocols based on continuous-spectrum quantum states.
