Measurement of the Density Matrix of a Longitudinally Modulated Atomic Beam
- 20 September 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (12) , 2285-2288
- https://doi.org/10.1103/physrevlett.83.2285
Abstract
We present the first measurement of the longitudinal density matrix of a matter-wave beam. Using a unique interferometric scheme, both the amplitude and phase of off-diagonal density matrix elements were determined directly, without the use of traditional tomographic techniques. The measured density matrix of a doubly amplitude modulated atomic sodium beam compares well with theoretical predictions.Keywords
This publication has 17 references indexed in Scilit:
- Longitudinal atom optics using localized oscillating fields: A fully quantum-mechanical treatmentPhysical Review A, 1999
- Search for Off-Diagonal Density Matrix Elements for Atoms in a Supersonic BeamPhysical Review Letters, 1999
- Measuring the quantum state of cold atoms using momentum-shearing interferometryPhysical Review A, 1998
- Reconstructing quantum states via quantum tomography and atom interferometryApplied Physics B Laser and Optics, 1997
- Interferometric measurement of an atomic wave functionPhysical Review A, 1997
- Measurement of the Wigner function of an ensemble of helium atomsNature, 1997
- Experimental Determination of the Motional Quantum State of a Trapped AtomPhysical Review Letters, 1996
- Experimental Determination of the Quantum-Mechanical State of a Molecular Vibrational Mode Using Fluorescence TomographyPhysical Review Letters, 1995
- Measurement of the Wigner distribution and the density matrix of a light mode using optical homodyne tomography: Application to squeezed states and the vacuumPhysical Review Letters, 1993
- Description of States in Quantum Mechanics by Density Matrix and Operator TechniquesReviews of Modern Physics, 1957