First-order Bose-Einstein condensation with three-body interacting bosons
arXiv:2103.16044 · doi:10.1103/PhysRevA.104.043301
Abstract
Bose-Einstein condensation, observed in either strongly interacting liquid helium or weakly interacting atomic Bose gases, is widely known to be a second-order phase transition. Here, we predict a first-order Bose-Einstein condensation in a cloud of harmonically trapped bosons interacting with both attractive two-body interaction and repulsive three-body interaction, characterized respectively by an -wave scattering length and a three-body scattering hypervolume . It happens when the harmonic trapping potential is weak, so with increasing temperature the system changes from a low-temperature liquid-like quantum droplet to a normal gas, and therefore experiences a first-order liquid-to-gas transition. At large trapping potential, however, the quantum droplet can first turn into a superfluid gas, rendering the condensation transition occurred later from a superfluid gas to a normal gas smooth. We determine a rich phase diagram and show the existence of a tri-critical point, where the three phases - quantum droplet, superfluid gas and normal gas - meet together. We argue that an ensemble of spin-polarized tritium atoms could be a promising candidate to observe the predicted first-order Bose-Einstein condensation, across which the condensate fraction or central condensate density jumps to zero and the surface-mode frequencies diverge.
arXiv comment14 pages, 7 figures
References in corpus (38)
- Theory of Bose-Einstein condensation in trapped gases
- Quantum Mechanical Stabilization of a Collapsing Bose-Bose Mixture
- Quantum liquid droplets in a mixture of Bose-Einstein condensates
- Observation of quantum droplets in a strongly dipolar Bose gas
- Self-bound quantum droplets in atomic mixtures
- Self-bound droplets of a dilute magnetic quantum liquid
- Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
- Conserving and Gapless Approximations for an Inhomogeneous Bose Gas at Finite Temperatures
- Bose-Einstein Condensation of Dark Matter Axions
- Observation of Quantum Droplets in a Heteronuclear Bosonic Mixture
- Condensate fraction and critical temperature of a trapped interacting Bose gas
- Finite temperature excitations of a trapped Bose gas
- New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
- Dilute Quantum Droplets
- Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation
- Collective excitations of self-bound droplets of a dipolar quantum fluid
- Three-boson problem at low energy and Implications for dilute Bose-Einstein condensates
- Consistent theory of self-bound quantum droplets with bosonic pairing
- Formation of atomic tritium clusters and condensates
- Collective excitations of a spherical ultradilute quantum droplet
- Mean field thermodynamics of a spin-polarized spherically trapped Fermi gas at unitarity
- Liquid-Gas phase transition in Bose-Einstein Condensates with time evolution
- Microscopic pairing theory of a binary Bose mixture with interspecies attractions: bosonic BEC-BCS crossover and ultradilute low-dimensional quantum droplets
- Effective expression of the Lee-Huang-Yang energy functional for heteronuclear mixtures
- Phonon Stability and Sound Velocity of Quantum Droplets in a Boson Mixture
- Van der Waals universality near a quantum tricritical point
- Collective oscillations of a confined Bose gas at finite temperature in the random-phase approximation
- Thermal destabilization of self-bound ultradilute quantum droplets
- Bose-Einstein condensation and liquid-gas phase transition in alpha-matter
- Thermodynamics of a Trapped Bose-Fermi Mixture
- Quantum unbinding near a zero temperature liquid-gas transition
- Droplet under confinement: Competition and coexistence with soliton bound state
- Revisiting a stability problem of two-component droplets
- Quantum Monte Carlo simulation of spin-polarized tritium
- Ultradilute self-bound quantum droplets in Bose-Bose mixtures at finite temperature
- Tuning the quantumness of simple Bose systems: A universal phase diagram
- Three-body scattering hypervolumes of particles with short-range interactions
- The phase diagram of ultra quantum liquids