Research output: Contribution to journal › Article › peer-review
Different quantum states of atoms in optical lattices can be nondestructively monitored by off-resonant collective light scattering into a cavity. Angle resolved measurements of photon number and variance give information about atom-number fluctuations and pair correlations without single-site access. Observation at angles of diffraction minima provides information on quantum fluctuations insensitive to classical noise. For transverse probing, no photon is scattered into a cavity from a Mott insulator phase, while the photon number is proportional to the atom number for a superfluid.
Original language | English |
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Article number | 100402 |
Journal | Physical Review Letters |
Volume | 98 |
Issue number | 10 |
DOIs | |
State | Published - 7 Mar 2007 |
ID: 69880420