How entangled can two couples get?
How Events Come Into Being: EEQT, Particle Tracks, Quantum Chaos, and Tunneling Time
How far apart are classical and quantum systems?
How fast can a quantum computer search?
How fast is the wave function collapse?
How good must single photon sources and detectors be for efficient linear optical quantum computation?
How hard is it to approximate the Jones polynomial?
How is spontaneous symmetry breaking possible?
How long can a quantum memory withstand depolarizing noise?
How macroscopic properties dictate microscopic probabilities
How many bits does it take to track an open quantum system?
How many CNOT gates does it take to generate a three-qubit state ?
How many copies are needed for state discrimination?
How many ebits can be unlocked with one classical bit?
How many functions can be distinguished with k quantum queries?
How many photons are needed to distinguish two transparencies?
How much complementarity?
How much contextuality?
How much does it cost to teleport?
How much entanglement can be generated between two atoms by detecting photons?