Precise manipulation of individual charge carriers in nanoelectronic circuits underpins
practical applications of their most basic quantum property—the universality and invariance …

Accurate measurement of ultraviolet radiation is key to many technologies including
wearable devices for skin cancer prevention, optical communication systems, and missile …

Significant advances have been made towards fault-tolerant operation of silicon spin qubits,
with single qubit fidelities exceeding 99.9%, several demonstrations of two-qubit gates …

High-speed and high-accuracy pum** of a single electron is crucial for realizing an
accurate current source, which is a promising candidate for a quantum current standard …

We report on high-accuracy measurements of quantized current, sourced by a tunable-
barrier single-electron pump at frequencies f up to 1 GHz. The measurements were …

We review recent precision measurements on semiconductor tunable-barrier electron
pumps operating in a ratchet mode. Seven studies on five different designs of pumps have …

Manipulation of single electrons is the key to develo** ultimate electronics such as single-
electron-based information processors and electrical standards in metrology. Especially …

We investigate the quantum transport of the heat and the charge through a quantum dot
coupled to fermionic contacts under the influence of time modulation of temperatures. We …

The universality of physical phenomena is a pivotal concept underlying quantum standards.
In this context, the realization of a quantum current standard using silicon single-electron …

Single-electron pumps based on semiconductor quantum dots are promising candidates for
the emerging quantum standard of electrical current. They can transfer discrete charges with …