Observation of nonadditive mixed state phases with polarized neutrons
arXiv:0809.0572 · doi:10.1103/PhysRevLett.101.150404
Abstract
In a neutron polarimetry experiment the mixed state relative phases between spin eigenstates are determined from the maxima and minima of measured intensity oscillations. We consider evolutions leading to purely geometric, purely dynamical and combined phases. It is experimentally demonstrated that the sum of the individually determined geometric and dynamical phases is not equal to the associated total phase which is obtained from a single measurement, unless the system is in a pure state.
RevTex, 4 pages, 4 figures, accepted by PRL
References in corpus (14)
- Geometric phases for mixed states in interferometry
- Observation of Berry's Phase in a Solid State Qubit
- An experimental observation of geometric phases for mixed states using NMR interferometry
- Off-Diagonal Geometric Phases
- Geometric phases for non-degenerate and degenerate mixed states
- Measurement of geometric phase for mixed states using single photon interferometry
- Mixed state geometric phases, entangled systems, and local unitary transformations
- Non-cyclic Geometric Phase due to Spatial Evolution in a Neutron Interferometer
- Noncyclic Pancharatnam phase for mixed state SU(2) evolution in neutron polarimetry
- Decoherence modes of entangled qubits within neutron interferometry
- Noncyclic mixed state phase in SU(2) polarimetry
- Comment on "Geometric phases for mixed states during cyclic evolutions"
- Geometric Phases for Mixed States during Cyclic Evolutions
- Reply to "comment on Geometric phases for mixed states during cyclic evolutions"
Cited by in corpus (20)
- Experimental demonstration of a universally valid error-disturbance uncertainty relation in spin-measurements
- Experimental test of quantum contextuality in neutron interferometry
- Experimental demonstration of the stability of Berry's phase for a spin-1/2 particle
- Violation of Heisenberg's error-disturbance uncertainty relation in neutron spin measurements
- Geometric phases in quantum information
- Fundamental phenomena of quantum mechanics explored with neutron interferometers
- Geometric Phase in Entangled Systems: A Single-Neutron Interferometer Experiment
- Residual error-disturbance uncertainties in successive spin-1/2 measurements tested in matter-wave optics
- Geometry along Evolution of Mixed Quantum States
- Violation of Bell-like Inequality for spin-energy entanglement in neutron polarimetry
- Information Flow, Non-Markovianity and Geometric Phases
- Geometric phases of mixed quantum states: A comparative study of interferometric and Uhlmann phases
- New Aspects of Geometric Phases in Experiments with polarized Neutrons
- Polarimetric measurements of single-photon geometric phases
- Geometry effect of the dynamical quantum phase transitions at finite temperatures
- Mixed-state geometric phases of coherent and squeezed spin states
- Uhlmann and scalar Wilczek-Zee phases of degenerate quantum systems
- Geometric phase of very slow neutrons
- Interferometric Geometric Phases of -symmetric Quantum Mechanics
- Proposed neutron interferometry test of Berry's phase for a circulating planar spin