Functional renormalization for repulsive Bose-Bose mixtures at zero temperature
arXiv:2011.00487 · doi:10.1103/PhysRevA.103.013318
Abstract
We study weakly-repulsive Bose-Bose mixtures in two and three dimensions at zero temperature using the functional renormalization group (FRG). We examine the RG flows and the role of density and spin fluctuations. We study the condition for phase separation and find that this occurs at the mean-field point within the range of parameters explored. Finally, we examine the energy per particle and condensation depletion. We obtain that our FRG calculations compare favorably with known results from perturbative approaches for macroscopic properties.
14 pages, 8 figures
References in corpus (58)
- Many-Body Physics with Ultracold Gases
- Exact evolution equation for the effective potential
- Non-Perturbative Renormalization Flow in Quantum Field Theory and Statistical Physics
- One dimensional Bosons: From Condensed Matter Systems to Ultracold Gases
- The dynamics of component separation in a binary mixture of Bose-Einstein condensates
- 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
- The nonperturbative functional renormalization group and its applications
- Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
- Phase separation of Bose-Einstein condensates
- Optimisation of the exact renormalisation group
- Theory of the Weakly Interacting Bose Gas
- Ultradilute low-dimensional liquids
- Measurements of Relative Phase in Binary Mixtures of Bose-Einstein Condensates
- A two atomic species superfluid
- Binary Bose-Einstein Condensate Mixtures in Weakly and Strongly Segregated Phases
- Extension of Bogoliubov theory to quasi-condensates
- Structure of binary Bose-Einstein condensates
- Nonperturbative renormalization group approach to frustrated magnets
- Weakly Interacting, Dilute Bose Gases in 2D
- Quantum depletion of a homogeneous Bose-Einstein condensate
- Low-dimensional Bose gases
- Phase fluctuations in atomic Bose gases
- The liquid state of one-dimensional Bose mixtures: a quantum Monte-Carlo study
- Universality in ultradilute liquid Bose-Bose mixtures
- Beyond Lee-Huang-Yang description of self-bound Bose mixtures
- Ultracold atoms and the Functional Renormalization Group
- Equation of state and self-bound droplet in Rabi-coupled Bose mixtures
- Non-dissipative drag of superflow in a two-component Bose gas
- Non-perturbative renormalization-group approach to the Bose-Hubbard model
- Functional renormalization for Bose-Einstein Condensation
- Functional renormalization for quantum phase transitions with non-relativistic bosons
- Andreev-Bashkin effect in superfluid cold gases mixture
- Josephson oscillations in binary mixtures of F=1 spinor BECs
- Microscopic pairing theory of a binary Bose mixture with interspecies attractions: bosonic BEC-BCS crossover and ultradilute low-dimensional quantum droplets
- Infrared behavior and spectral function of a Bose superfluid at zero temperature
- Infrared behavior in systems with a broken continuous symmetry: classical O(N) model vs interacting bosons
- Universal dimerized quantum droplets in a one-dimensional lattice
- Weakly linked binary mixtures of F=1 87-Rb Bose-Einstein condensates
- Non-perturbative renormalization-group approach to zero-temperature Bose systems
- Functional renormalization group approach to interacting bosons at zero temperature
- Superfluid Bose gas in two dimensions
- Effective interactions in a quantum Bose-Bose mixture
- Spin dynamics and Andreev-Bashkin effect in mixtures of one-dimensional Bose gases
- Coupled superfluidity of binary Bose mixtures in two dimensions
- Thermodynamics of dilute Bose gases: Beyond mean-field theory for binary mixtures of Bose-Einstein condensate
- N-conserving Bogoliubov vacuum of a two component Bose-Einstein condensate: Density fluctuations close to a phase separation condition
- Dimensional crossover of nonrelativistic bosons
- Microscopic derivation of the extended Gross-Pitaevskii equation for quantum droplets in binary Bose mixtures
- Nonperturbative thermodynamics of an interacting Bose gas
- Equation of state of the one- and three-dimensional Bose-Bose gases
- Hydrodynamic modes of partially condensed Bose mixtures
- Bose-Einstein condensation and critical behavior of two-component bosonic gases
- Stability of low-dimensional multicomponent Bose gases
- 2D dilute Bose mixture at low temperatures
- Thermodynamics of Bose gases from functional renormalization with a hydrodynamic low-energy effective action
- Ground-state properties of a dilute two-dimensional Bose gas
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