  Despite numerous studies, the sources of IceCube cosmic neutrinos have
hitherto been unidentified. Utilizing recently released IceCube neutrino and
CHIME fast radio burst (FRB) catalogs, we examine the possibility of an
association between neutrinos and FRBs for both the entire FRB population and
individual FRBs using the unbinned maximum likelihood method. Our results rule
out the possibility of the above-mentioned association with three weighting
schemes: equal, total radio fluence, and event rate. We then attempt to
constrain the diffuse neutrino flux upper limit from CHIME FRBs. We find the
diffuse flux upper limit at 100 TeV to be $\sim
7.95\times10^{-21}\;\mathrm{GeV}^{-1}\;\mathrm{cm}^{-2}\;\mathrm{s}^{-1}\;\mathrm{sr}^{-1}$,
or $\sim 0.55\%$ of the 10-year diffuse neutrino flux observed by IceCube. Our
results match the results of other studies.
