Exploring the thermodynamics of spin-1 ${}^{87}$Rb Bose Gases with synthetic magnetization

Abstract

In this work, we study the thermodynamic properties of a spin-1 Bose gas across the Bose-Einstein condensation transition. We present the theoretical description of the thermodynamics of a trapped ideal spin-1 Bose gas and we describe the phases that can be obtained in this system as a function of the temperature and of the populations in the different spin components. We propose a simple way to realize a "synthetic magnetization" that can be used to probe the entire phase diagram while keeping the real magnetization of the system fixed. We experimentally demonstrate the use of such method to explore different phases in a sample with zero total magnetization. Our work opens up new perspectives to study isothermal quenching dynamics through different magnetic phases in spinor condensates.

References in corpus (6)

• Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
• Scalable Spin Squeezing for Quantum-Enhanced Magnetometry with Bose-Einstein Condensates
• Spinor Dynamics in an Antiferromagnetic Spin-1 Condensate
• Magnetically tuned spin dynamics resonance
• Thermodynamics of a spin-1 Bose gas with fixed magnetization
• Spin dynamics in a two dimensional quantum gas