Cold atom quantum simulator for dilute neutron matter

@article{Horikoshi2019ColdAQ,
  title={Cold atom quantum simulator for dilute neutron matter},
  author={Munekazu Horikoshi and Makoto Kuwata-Gonokami},
  journal={International Journal of Modern Physics E},
  year={2019}
}
The internal structure of neutron stars and the physical properties of nuclei depend on the equation of state (EOS) of neutron matter. Dilute neutron matter is a quantum system of spin-1/2 Fermi particles interacting via s-wave scattering. Although a nuclear system and an ultracold atomic system have length scales and energy scales that differ by several orders of magnitude, both systems follow a common universal EOS considering their nondimensional universal interaction parameters. In this… 

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References

SHOWING 1-10 OF 75 REFERENCES

Strongly paired fermions: Cold atoms and neutron matter

Experiments with cold Fermi atoms can be tuned to probe strongly-interacting fluids that are very similar to the low-density neutron matter found in the crusts of neutron stars. In contrast to

Neutron Matter from Low to High Density

Neutron matter is an intriguing nuclear system with multiple connections to other areas of physics. Considerable progress has been made over the last two decades in exploring the properties of pure

Theory of ultracold atomic Fermi gases

The physics of quantum degenerate atomic Fermi gases in uniform as well as in harmonically trapped configurations is reviewed from a theoretical perspective. Emphasis is given to the effect of

Superfluid Fermi atomic gas as a quantum simulator for the study of the neutron-star equation of state in the low-density region

We theoretically propose an idea to use an ultracold Fermi gas as a quantum simulator for the study of the neutron-star equation of state (EoS) in the low-density region. Our idea is different from

Quantum Simulation

One of the most active areas in atomic, molecular and optical physics is the use of ultracold atomic gases in optical lattices to simulate the behaviour of electrons in condensed matter systems. The

Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas

TLDR
The superfluid phase transition in a strongly interacting Fermi gas is observed by high-precision measurements of the local compressibility, density, and pressure, which completely determine the universal thermodynamics of these gases without any fit or external thermometer.

The Nuclear Equation of State and Neutron Star Masses

Neutron stars are valuable laboratories for the study of dense matter. Recent observations have uncovered both massive and low-mass neutron stars and have also set constraints on neutron star radii.

Quantum fluctuations in the superfluid state of the BCS-BEC crossover

We determine the effects of quantum fluctuations about the T=0 mean-field solution of the BCS-BEC crossover in a dilute Fermi gas using the functional integral method. These fluctuations are
...