Time in Quantum Theory (TiQT) 2026

Session

Quantum Foundations

27 May 2026, 11:40

Albano 3: 4204 - SU Conference Room (56 seats) (Albano Building 3)

11. The time of arrival problem in the Page-Wootters formalism

Ms Niyusha Hosseini (TU Wien)

27/05/2026, 11:40

Talk

The time-of-arrival problem asks for a probability distribution for when a quantum particle reaches a specified location. It has been the subject of decades of debate, exemplifying the lack of a self-adjoint time observable in quantum theory. In the Page–Wootters framework, time is a relational quantity, emerging from correlations between a system and a clock induced by a global Hamiltonian...

21. Exponential gain in clock precision using quantum correlated ticks

Mr Florian Meier (Technische Universität Wien)

27/05/2026, 14:00

Talk

Creating precise timing devices at ultra-short time scales is not just an important technological challenge, but confronts us with foundational questions about timekeeping's ultimate precision limits. Research on clocks has either focused on long-term stability using an oscillator stabilized by a level transition, limiting precision at short timescales, or on making individual stochastic ticks...

23. Timed demolition measurements

Dr Miguel Navascués (IQOQI Vienna)

27/05/2026, 14:20

Talk

Picture an experimental scenario where a closed quantum system, evolving through a time-independent Hamiltonian, is subject to a demolition measurement at a chosen time. The Hamiltonian, the measured observables, the initial state of the physical system and even its Hilbert space dimension are unknown; we nonetheless assume a promise or constraint on the energy distribution of the state. In...

4. Quantum work operator beyond the two-point measurement scheme

Mr Carlo Cepollaro (University of Vienna / IQOQI Vienna)

27/05/2026, 14:40

Talk

In this paper we address and propose a solution to the problem of the definition of work in quantum mechanics. We define a work operator for driven quantum systems by recasting the problem in an automatized picture, where the driving of the system is replaced by a time-independent interaction with a battery. In this energy-conserving setting, the work operator is recovered as the energy that...