From a thermodynamic point of view, all clocks are driven by irreversible processes.
Additionally, one can use oscillatory systems to temporally modulate the thermodynamic flux …

We theoretically and experimentally study the precision of a quantum clock near zero
temperature, explicitly accounting for the effect of continuous measurement. The clock is …

Leggett and Garg formulated macrorealist models encoding our intuition on classical
systems, ie, physical quantities have a definite value that can be measured with minimal …

We analytically derive universal bounds that describe the tradeoff between thermodynamic
cost and precision in a sequence of events related to some internal changes of an otherwise …

Complex systems are embedded in our everyday experience. Stochastic modelling enables
us to understand and predict the behaviour of such systems, cementing its utility across the …

In the design of stochastic models, there is a constant trade-off between model complexity
and accuracy. Here we prove that quantum models enable a more favorable trade-off. We …

Time estimation is a fundamental task that underpins precision measurement, global
navigation systems, financial markets, and the organisation of everyday life. Many biological …

Computation is an input-output process, where a program encoding a problem to be solved
is inserted into a machine that outputs a solution. Whilst a formalism for quantum Turing …

When an atom is in an excited state, after some amount of time, it will decay to a lower
energy state emitting a photon in the process. This is known as spontaneous emission. It is …

Here we explore the possibility of precise time keeping in quantum systems using athermal
resources. We show that quantum measurement engineered reservoirs can be used as …