Quantum State Reduction by Matter-Phase-Related Measurements in Optical Lattices

Wojciech Kozlowski, Santiago F. Caballero-Benitez, Igor B. Mekhov

Research output

5 Citations (Scopus)


A many-body atomic system coupled to quantized light is subject to weak measurement. Instead of coupling light to the on-site density, we consider the quantum backaction due to the measurement of matter-phase-related variables such as global phase coherence. We show how this unconventional approach opens up new opportunities to affect system evolution. We demonstrate how this can lead to a new class of final states different from those possible with dissipative state preparation or conventional projective measurements. These states are characterised by a combination of Hamiltonian and measurement properties thus extending the measurement postulate for the case of strong competition with the system's own evolution.

Original languageEnglish
Article number42597
JournalScientific Reports
Publication statusPublished - 22 Feb 2017

Scopus subject areas

  • General

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