The progress witnessed within the field of quantum computing has been enabled by the
identification and understanding of interactions between the state of the quantum bit (qubit) …

One field of organometallic and materials chemistry that has seen great advancements over
the last 20 years is that of atomic layer deposition (ALD), and in particular the development …

Electrochemical supercapacitors utilizing α-MnO2 offer the possibility of both high power
density and high energy density. Unfortunately, the mechanism of electrochemical charge …

Many superconducting qubits are highly sensitive to dielectric loss, making the fabrication of
coherent quantum circuits challenging. To elucidate this issue, we characterize the …

An on-chip electron spin resonance technique is applied to reveal the nature and origin of
surface spins on Al 2 O 3. We measure a spin density of 2.2× 1 0 17 spins/m 2, attributed to …

Material-based two-level systems (TLSs), appearing as defects in low-temperature devices
including superconducting qubits and photon detectors, are difficult to characterize. In this …

Dissipative two-level systems (TLS) have been a long-standing problem in glassy solids
over the last fifty years and have recently gained new relevance as sources of decoherence …

Quantum two-level systems (TLSs) are present in the materials of qubits and are considered
defects because they limit qubit coherence. For superconducting qubits, the quintessential …

Metal-insulator-metal tunnel junctions are common throughout the microelectronics industry.
The industry standard AlO x tunnel barrier, formed through oxygen diffusion into an Al …

Atomic sized two-level systems (TLSs) in amorphous dielectrics are known as a major
source of loss in superconducting devices. In addition, individual TLSs are known to induce …