Journal
PHYSICAL REVIEW A
Volume 90, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.90.043618
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Funding
- UK EPSRC [EP/L005026/1, EP/K029371/1, EP/G004579/1]
- John Templeton Foundation [43467]
- EU [618074]
- Ultracold Quantum Gases Group at Aarhus University
- Engineering and Physical Sciences Research Council [EP/G004579/1, EP/K029371/1, EP/L005026/1] Funding Source: researchfish
- EPSRC [EP/K029371/1, EP/G004579/1, EP/L005026/1] Funding Source: UKRI
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We propose a scheme for the detection of quantum phase transitions in the one-dimensional (1D) Bose-Hubbard (BH) and 1D Extended Bose-Hubbard (EBH) models, using the nondemolition measurement technique of quantum polarization spectroscopy. We use collective measurements of the effective total angular momentum of a particular spatial mode to characterize the Mott insulator to superfluid phase transition in the BH model and the transition to a density wave state in the EBH model. We extend the application of collective measurements to the ground states at various deformations of a superlattice potential.
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