The
Bohr–Einstein debates were a series of public disputes about
quantum mechanics between
Albert Einstein and
Niels Bohr. Their debates are remembered because of their importance to the
philosophy of science, since the disagreements and the outcome of Bohr's version of quantum mechanics that became the prevalent view form the root of the modern understanding of physics.
Most of Bohr's version of the events held in
Solvay in 1927 and other places was first written by Bohr decades later in an article titled, "Discussions with Einstein on Epistemological Problems in Atomic Physics".
Based on the article, the philosophical issue of the debate was whether Bohr's
Copenhagen Interpretation of quantum mechanics, which centered on his belief of
complementarity, was valid in explaining nature.
Despite their differences of opinion and the succeeding discoveries that helped solidify quantum mechanics, Bohr and Einstein maintained a mutual admiration that was to last the rest of their lives.
See
https://www.marxists.org/reference/subject/philosophy/works/dk/bohr.htm
