Thermodynamics of Dipolar Chain Systems

Abstract

The thermodynamics of a quantum system of layers containing perpendicularly oriented dipolar molecules is studied within an oscillator approximation for both bosonic and fermionic species. The system is assumed to be built from chains with one molecule in each layer. We consider the effects of the intralayer repulsion and quantum statistical requirements in systems with more than one chain. Specifically, we consider the case of two chains and solve the problem analytically within the harmonic Hamiltonian approach which is accurate for large dipole moments. The case of three chains is calculated numerically. Our findings indicate that thermodynamic observables, such as the heat capacity, can be used to probe the signatures of the intralayer interaction between chains. This should be relevant for near future experiments on polar molecules with strong dipole moments.

15 pages, 5 figures, final version

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Cited by in corpus (7)

• Correlation effects and collective excitations in bosonic bilayers: role of quantum statistics, superfluidity and dimerization transition
• Bound states of Dipolar Bosons in One-dimensional Systems
• Analytic solutions of topologically disjoint systems
• Effective dipole-dipole interactions in multilayered dipolar Bose-Einstein condensates
• Quantum few-body bound states of dipolar particles in a helical geometry
• Bose-like few-fermion systems
• Many-Body Formation and Dissociation of a Dipolar Chain Crystal