Spatial compression of a particle state in a parabolic potential by spin measurements
arXiv:1612.01588 · doi:10.1103/PhysRevB.94.134313
Abstract
We propose a scheme for engineering compressed spatial states in a two-dimensional parabolic potential with a spin-orbit coupling by selective spin measurements. This sequence of measurements results in a coordinate-dependent density matrix with probability maxima achieved at a set of lines or at a two dimensional lattice. The resultant probability density depends on the spin-orbit coupling and the potential parameters and allows one to obtain a broad class of localized pure states on demand. The proposed scheme can be realized in spin-orbit coupled Bose-Einstein condensates.
References in corpus (19)
- A spin-orbit coupled Bose-Einstein condensate
- Coherent control of a single electron spin with electric fields
- Non-ballistic spin field-effect transistor
- An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
- Prospects for Spin-Based Quantum Computing
- Direct Measurement of the Spin-Orbit Interaction in a Two-Electron InAs Nanowire Quantum Dot
- Effective Pure States for Bulk Quantum Computation
- Bell Correlations in a Bose-Einstein Condensate
- Macroscopic quantum computation using Bose-Einstein condensates
- Purification through Zeno-like Measurements
- Spin-motion entanglement and state diagnosis with squeezed oscillator wavepackets
- Demon-like Algorithmic Quantum Cooling and its Realization with Quantum Optics
- Nondeterminstic ultrafast ground state cooling of a mechanical resonator
- Quantum control of the motional states of trapped ions through fast switching of trapping potentials
- Long-range entanglement generation via frequent measurements
- Quantum state manipulation of trapped atomic ions
- Von Neumann spin measurements with Rashba fields
- Repeated measurements and nuclear spin polarization
- Scattering induced spatial superpositions in multi-particle localization
Cited by in corpus (5)
- External-level assisted cooling by measurement
- Generation of Schrödinger's cat states in a planar semiconductor heterostructure
- Quantum mechanics and speed limit of ultrafast local control in spin chains
- Tuning the nuclei-induced spin relaxation of localized electrons by the quantum Zeno and anti-Zeno effects
- Quantum state identification of qutrits via a nonlinear protocol