Ultracold neutral plasmas

M Lyon, SL Rolston - Reports on Progress in Physics, 2016 - iopscience.iop.org
By photoionizing samples of laser-cooled atoms with laser light tuned just above the
ionization limit, plasmas can be created with electron and ion temperatures below 10 K …

[HTML][HTML] Exploring the crossover between high-energy-density plasma and ultracold neutral plasma physics

SD Bergeson, SD Baalrud, CL Ellison, E Grant… - Physics of …, 2019 - pubs.aip.org
In this paper, we present ideas that were part of the miniconference on the crossover
between High Energy Density Plasmas (HEDP) and Ultracold Neutral Plasmas (UNPs) at …

[HTML][HTML] Finite-amplitude RF heating rates for magnetized electrons in neutral plasma

JM Guthrie, JL Roberts - Physics of Plasmas, 2021 - pubs.aip.org
A theoretical model is developed and evaluated using a Vlasov–Poisson treatment to
calculate radio frequency (RF) electric field heating rates for magnetized electrons in neutral …

Interatomic Coulombic decay cascades in multiply excited neon clusters

K Nagaya, D Iablonskyi, NV Golubev… - Nature …, 2016 - nature.com
In high-intensity laser light, matter can be ionized by direct multiphoton absorption even at
photon energies below the ionization threshold. However on tuning the laser to the lowest …

Arrested relaxation in an isolated molecular ultracold plasma

R Haenel, M Schulz-Weiling, J Sous, H Sadeghi… - Physical Review A, 2017 - APS
Spontaneous avalanche to plasma splits the core of an ellipsoidal Rydberg gas of nitric
oxide. Ambipolar expansion first quenches the electron temperature of this core plasma …

On the evolution of the phase-space distributions of a non-spherical molecular ultracold plasma in a supersonic beam

M Schulz-Weiling, H Sadeghi, J Hung… - Journal of Physics B …, 2016 - iopscience.iop.org
This paper offers a toolbox for characterizing the initial conditions and predicting the
evolution of the ultracold plasma that forms after resonant laser preparation of a Rydberg …

Dissipative dynamics of atomic and molecular Rydberg gases: Avalanche to ultracold plasma states of strong coupling

M Aghigh, K Grant, R Haenel… - Journal of Physics B …, 2020 - iopscience.iop.org
Not long after metastable xenon was photoionized in a magneto-optical trap, groups in
Europe and North America found that similar states of ionized gas evolved spontaneously …

Using higher ionization states to increase Coulomb coupling in an ultracold neutral plasma

M Lyon, SD Bergeson, A Diaw, MS Murillo - Physical Review E, 2015 - APS
We report measurements and simulations of the time-evolving rms velocity distribution in an
ultracold neutral plasma. A strongly coupled ultracold neutral Ca+ plasma is generated by …

Quantum state control of ultracold plasma fission

M Schulz-Weiling, ER Grant - … of Physics B: Atomic, Molecular and …, 2016 - iopscience.iop.org
Double-resonant transitions excite nitric oxide in a seeded supersonic molecular beam,
yielding a state-selected Rydberg gas that evolves to form an ultracold plasma. This plasma …

n-changing population of Rydberg states by low-energy electron–Rydberg collisions

Y Li, F Fang, W Zhou, D Liu, Z He, D Zhao… - The Journal of …, 2024 - pubs.aip.org
Inelastic n-changing collisions play an important role in the evolution of Rydberg atoms into
ultracold plasmas. However, for the initially intermediate n (n∼ 40) Rydberg states, these …