Berlin 2024 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 3: Focus Session: Quantum Interactive Dynamics I (joint session DY/TT)

Montag, 18. März 2024, 09:30–13:00, A 151

Quantum many-body systems out of equilibrium represent a challenging frontier and have been shown to exhibit extremely rich phenomena. Recent experimental advances in building Noisy Intermediate-Scale Quantum (NISQ) devices have opened up a completely new territory in this context. The natural evolution implemented by NISQ devices is a quantum interactive dynamics generated by a combination of unitary gates and measurements. These platforms provide an opportunity to explore vastly larger parts of the Hilbert space and go beyond what can be realized in purely unitary systems. In pioneering works, an entanglement phase transition was identified in the dynamics of circuits of random unitary gates interleaved with local projective measurements. This phase transition separates a disentangling phase, obeying an area law, and an entangling phase obeying a volume law. Successively, it has been shown that additional phase transitions between different area phases can occur and new kinds of quantum phase transitions have been discovered. This session aims to give an overview of recent theoretical and experimental developments within this very active field and point towards the open questions.

Organized by Roderich Moesser (Dresden) and Frank Pollmann (München)

	09:30	DY 3.1	Hauptvortrag: Quantum information phases in space-time: measurement-induced entanglement and teleportation on a noisy quantum processor — •Vedika Khemani
	10:00	DY 3.2	Hauptvortrag: Measurement phase transitions and universality — •Adam Nahum
	10:30	DY 3.3	Hauptvortrag: Dual-unitary circuit dynamics — •Pieter Claeys
	11:00	DY 3.4	Truncated Hilbert space approach for simulating dynamics in perturbed Ising chains — •Nico Albert and Hong-Hao Tu
	11:15	DY 3.5	Entanglement Transitions in Unitary Circuit Games — •Raúl Morral-Yepes, Adam Smith, Shivaji L. Sondhi, and Frank Pollmann
	11:30	DY 3.6	Entanglement phases, localization and multifractality of monitored free fermions in two dimensions — •Karim Chahine and Michael Buchhold
	11:45	DY 3.7	Temporal Entanglement in Dual-Unitary Clifford Circuits with Probabilistic Measurements — •Jiangtian Yao and Pieter Claeys
	12:00	DY 3.8	Universal correlations in mesoscopic many-body systems: Berry's Random Wave Model in Fock space — •Florian Schöppl, Rémy Dubertrand, Juan Diego Urbina, and Klaus Richter
	12:15	DY 3.9	Efficient Learning of Matrix Product States for Approximation of Purities in Quantum Many-Body Systems — •Dmytro Kolisnyk, Raimel Medina, and Maksym Serbyn
	12:30	DY 3.10	Quantum complexity phase transitions in monitored random circuits — •Ryotaro Suzuki, Jonas Haferkamp, Jens Eisert, and Philippe Faist
	12:45	DY 3.11	Measurement induced phase transition with an extended log-law phase in an integrability-broken transverse field Ising model — •Monalisa Singh Roy, Jonathan Ruhman, Emanuele G. Dalla Torre, and Efrat Shimshoni