Speaker
Description
State-of-the-art quantum simulators permit local temporal control
of interactions and midcircuit readout. These capabilities open the
way towards the exploration of intriguing nonequilibrium phenomena.
We illustrate this with a kinetically constrained many-body quantum
system that has a natural implementation on (dual-species) Rydberg
quantum simulators [1]. The evolution proceeds in discrete time and
is generated by repeatedly entangling the system with an auxiliary
environment that is monitored and reset after each time-step.
Despite featuring an uncorrelated infinite-temperature average
stationary state, the time-record of the measurement outcomes on
the environment can reveal novel types of collective behavior.
Specifically, we discuss a phase transition between an uncorrelated
and a dynamically heterogeneous phase, where fast and slow
space-time regions coexist in measurement time-records [2].
[1] M. Cech, M. Cea, M. C. Bañuls, I. Lesanovsky and F. Carollo
Space-time correlations in monitored kinetically constrained discrete-time quantum dynamics
Physical Review Letters 134, 230403 (2025)
[2] M. Cech, C. De Fazio, M. Cea, M. C. Bañuls, I. Lesanovsky and F. Carollo
Revealing emergent many-body phenomena by analyzing large-scale space-time records of monitored quantum systems
arXiv:2507.00944 (2025)
| Project | T4 - Kinetically constrained dynamics in quantum gases |
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