Controlling Quantum State Reduction
Masanao Ozawa
Abstract
Every measurement leaves the object in a family of states indexed by the possible outcomes. This family, called the posterior states, is usually a family of the eigenstates of the measured observable, but it can be an arbitrary family of states by controlling the object-apparatus interaction. A potentially realizable object-apparatus interaction measures position in such a way that the posterior states are the translations of an arbitrary wave function. In particular, position can be measured without perturbing the object in a momentum eigenstate.
Create a lesson
Related papers
Towards the Geometry of Quantum Optical Measurements: Kraus Trajectories in the Instrumental Weyl-Heisenberg Group Manifold
Tzula B. Propp, Chris S. Jackson
Bell's go theorem: regaining local causality with a new notion of realism
Lorenzo Catani, Nesta van der Schaaf, Rui Soares Barbosa
Quantum state texture of maximal-resource Fourier states under Hawking radiation
Shengyan Ma, Yiding Wang, Xiaofen Huang et al.
Magic-Free Certification of Logical Error Rates in Universal Fault-Tolerant Circuits
Gebrat Porta-San Miguel, Shahram Panahiyan, Dieter Jaksch
QBFF: Deep Quantum Bottleneck for Automatic Speaker Verification Anti-Spoofing
Anton Firc, Nouhaila Innan, Vojtěch Staněk et al.
Entanglement and parametric resonance in coupled oscillator systems
Roxane Thériault, George Zahariade