Mehdi Saeedi, Igor L. Markov, Synthesis and Optimization of Reversible Circuits - A Survey, ACM Computing Surveys, 2012. http://arxiv.org/abs/1110.2574
nature.com
Bérut, Antoine, et al. "Experimental verification of Landauer's principle linking information and thermodynamics." Nature 483.7388 (2012): 187-189: "From a technological perspective, energy dissipation per logic operation in present-day silicon-based digital circuits is about a factor of 1,000 greater than the ultimate Landauer limit, but is predicted to quickly attain it within the next couple of decades"
Eyal Cohen, Shlomi Dolev and Michael Rosenblit, "All-optical design for inherently energy-conserving reversible gates and circuits", Nature Communications 7, Article number: 11424 (2016). https://www.nature.com/articles/ncomms11424