ASCENT Theme 2 Liaison Meeting
Time: 4:00 pm - 5:00 pm
Title: Emulating quantum logic with probabilistic circuits
Presenters: Shuvro Chowdhury & Supriyo Datta (Purdue)
Digital computing is based on a deterministic bit with two values, 0 and 1. On the other hand, quantum computing is based on a q-bit which is a delicate superposition of 0 and 1. This talk draws attention to something in-between namely, a p-bit which is a robust classical entity fluctuating between 0 and 1.
Feynman  used the concept of a probabilistic computer as a counterpoint to the quantum computer, noting that “ .. the only difference between a probabilistic classical world and the equations of the quantum world is that .. the probabilities would have to go negative .. ” The awesome power of quantum computing comes from exploiting these negative (more generally complex) probabilities, which in turn requires stringent experimental conditions to protect the phase.
A probabilistic computer by contrast can be built with existing technology to operate at room temperature as we have demonstrated experimentally . They lack the magic of complex probabilities but can function as hardware accelerators for many applications that use stochastic algorithms .
 R.P. Feynman, Int. J. Theor. Phys. 21, 467 (1982).
 W.A. Borders et al. Nature 573, 390 (2019).
 B.M. Sutton et al. IEEE Access 8, 157238 (2020)
This meeting is only available to the JUMP research community, such as Principal Investigators, Postdoc researchers, Students, and Industry/Government liaisons.