In quantum channels, zero plus zero can equal non-zero
Monday, October 6, 2008 - 08:28
in Physics & Chemistry
(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity when used together. This effect, which has no classical counterpart, reveals a new complexity in the fundamental nature of quantum communication.