  We propose a new Write-Once-Memory (WOM) coding scheme based on source
polarization. By applying a source polarization transformation on the
to-be-determined codeword, the proposed WOM coding scheme encodes information
into the bits in the high-entropy set. We prove in this paper that the proposed
WOM codes are capacity-achieving. WOM codes have found many applications in
modern data storage systems, such as flash memories.
