We study the static and dynamic responses of an $F=1$ dipolar spinor condensate with magnetic dipole moment under external magnetic fields, focusing on the effects induced by the magnetic dipolar interactions between atoms. A rich set of phenomena are investigated such as the ground state quantum phases, the magnetization steps, spin squeezing, and macroscopic entanglement generation.We study the static and dynamic responses of an $F=1$ dipolar spinor condensate with magnetic dipole moment under external magnetic fields, focusing on the effects induced by the magnetic dipolar interactions between atoms. A rich set of phenomena are investigated such as the ground state quantum phases, the magnetization steps, spin squeezing, and macroscopic entanglement generation.

Physical Review AFeb 6, 200663 citations

Spin squeezing in spin-1 Bose condensates

Chris Hamley, Corey Gerving, Thai M. Hoang +1 more

Bulletin of the American Physical SocietyJun 15, 20110 citations

Adiabatic Mach-Zehnder interferometer in dipolar spin-1 condensate

Yixiao Huang, Wei Guo, Ning-Ju Hui +1 more

Mach-Zehnder interferometer, a powerful tool for a wide variety of measurements, has been realized with Bose-Einstein condensates in recent experiments. In this report, we propose and analyze a realizable scheme for performing a Heisenberg-limited Mach-Zehnder interferometry with 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 discuss the spin- $1$ squeezing induced in the adiabatic passage and show that the squeezing parameter attains its minimal value near the point of saturation field.Mach-Zehnder interferometer, a powerful tool for a wide variety of measurements, has been realized with Bose-Einstein condensates in recent experiments. In this report, we propose and analyze a realizable scheme for performing a Heisenberg-limited Mach-Zehnder interferometry with 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 discuss the spin-$1$ squeezing induced in the adiabatic passage and show that the squeezing parameter attains its minimal value near the point of saturation field.

arXiv:1511.03893Nov 12, 20150 citations

Spin Squeezing in Spinor Condensates

Sabrina R. Leslie, Jay Deep Sau, Marvin L. Cohen +1 more

Bulletin of the American Physical SocietyMar 17, 20090 citations

Entanglement of dipolar coupling spins

G. B. Furman, V. Meerovich, Vladimir Sokolovsky

arXiv:1003.1540Quantum Information ProcessingSep 25, 201045 citations

We study the static and dynamic responses of an

F=1

dipolar spinor condensate with magnetic dipole moment under external magnetic fields, focusing on the effects induced by the magnetic dipolar interactions between atoms. A rich set of phenomena are investigated such as the ground state quantum phases, the magnetization steps, spin squeezing, and macroscopic entanglement generation.

1

squeezing induced in the adiabatic passage and show that the squeezing parameter attains its minimal value near the point of saturation field.