The past few decades have seen major developments in the design and operation of
cryogenic particle detectors. This technology offers an extremely good energy resolution …

The invention of the 3He/4He dilution refrigerator opened a new chapter in experimental
ultra-low temperature physics. Dilution refrigerators became essential for providing ultra-low …

We probe the interface between a phase-separated Bose-Fermi mixture consisting of a
small Bose-Einstein condensate of K 41 residing in a large Fermi sea of Li 6. We quantify the …

Quantum computers have the potential to solve problems which are classically intractable.
Superconducting qubits present a promising path to building such a computer. Recent …

Low-temperature scanning probe microscopes (SPMs) are critical for the study of quantum
materials and quantum information science. Due to the rising costs of helium, cryogen-free …

Superconductivity is reported in an endohedral aluminide compound, RuAl6, with T c= 1.21
K. The normalized heat capacity jump at T c, ΔC/γ T c= 1.58, confirms bulk superconductivity …

In this dissertation, I introduce a novel method for measuring individual nanoscale two-level
systems (TLSs) in amorphous solids based on strong direct coupling between a TLS and a …

The detection of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) represents an
experimental challenge because of its unique signature: a low-energy nuclear recoil in the …

An unconventional method of continuous solid-state cryogenic cooling utilizing the electron
subband degeneracy of semiconductor heterostructures is proposed in this Letter. An …

AEgIS [1] is an antimatter experiment, using high voltage electrodes at 100 mK. In this work
two possible principles to cool these electrodes with a dilution refrigerator are described: the …