1. A. Kitaev, "Hidden correlations in the Hawking radiaion, thermal noise," http://online.kitp.ucsb.edu/ online/joint98/kitaev/ (2015)
2. "A simple model of quantum holography (part 1)," http://online.kitp.ucsb.edu/online/entangled15/kitaev/ (2015)
3. "A simple model of quantum holography (part 2)," http://online.kitp.ucsb.edu/online/entangled15/kitaev2/ (2015).
4. J. Maldacena and D. Stanford, “Remarks on the Sachdev-Ye-Kitaev model,” Phys. Rev. D, 94, 106002 (2016); arXiv:1604.07818v1 [hep-th] (2016).
5. J. Polchinski and V. Rosenhaus, “The spectrum in the Sachdev-Ye-Kitaev model,” JHEP, 1704, 001 (2017); arXiv:1601.06768v1 [hep-th] (2016).