Adiabatic Mach–Zehnder interferometer in a dipolar spin-1 condensate

Journal Article · Mon Jan 15 00:00:00 EST 2018 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2017.11.001· OSTI ID:22848269

Huang, Yixiao ^[1]; Guo, Wei ^[2]; Hui, Ning-Ju ^[3]; Hu, Zheng-Da ^[4]

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1. School of Science, Zhejiang University of Science and Technology, Hangzhou, Zhejiang, 310023 (China)
2. Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027 (China)
3. Department of Applied Physics, Xi’an University of Technology, Xi’an 710054 (China)
4. School of Science, Jiangnan University, Wuxi 214122 (China)

We propose and analyze a realizable scheme for performing a Heisenberg-limited Mach–Zehnder interferometry with a dipolar spin-1 condensate. Based upon adiabatic processes of sweeping the transverse magnetic field, we demonstrate a perfect phase transition, which accomplishes the beam splitter, phase shifter and recombiner as for a Mach–Zehnder interferometer. The attractive dipolar interaction ensures the existence of a path-entangled state which enhances the phase measurement precision to the Heisenberg limit. We also study the spin squeezing of the state generated in the beam splitter and show that the spin squeezing exhibits an extremum near the critical point of phase transition.

• OSTI ID: 22848269
• Journal Information: Annals of Physics, Vol. 388; Other Information: © 2017 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
CONDENSATES
INTERACTIONS
INTERFEROMETRY
MACH-ZEHNDER INTERFEROMETER
MAGNETIC FIELDS
PHASE SHIFT
PHASE TRANSFORMATIONS
QUANTUM ENTANGLEMENT
RECOMBINERS
SPIN
SPINORS