Quantum computers do not allow for information to time travel unless you count entanglement. Quantum computers allow you to solve certain complex problems that would require an exponential amount of time in a polynomial amount of time (the primary example being factorization, because it would render cryptography obsolete).
Quantum computers do not allow for information to time travel unless you count entanglement. Quantum computers allow you to solve certain complex problems that would require an exponential amount of time in a polynomial amount of time (the primary example being factorization, because it would render cryptography obsolete).