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These Lecture Notes discuss the recent theoretical advances in the understanding of open quantum many-body physics in platforms where both dissipative and coherent processes can be tuned and controlled to a high degree. We start by reviewing the theo
Externí odkaz:
http://arxiv.org/abs/2409.10300
Recently, there has been interest in the dynamics of monitored quantum systems using linear jump operators related to the creation or annihilation of particles. Here we study the dynamics of the entanglement entropy under quantum jumps that induce lo
Externí odkaz:
http://arxiv.org/abs/2408.03700
Many-body systems which saturate the quantum bound on chaos are attracting interest across a wide range of fields. Notable examples include the Sachdev-Ye-Kitaev model and its variations, all characterised by some form or randomness and all to all co
Externí odkaz:
http://arxiv.org/abs/2407.13617
Poor man's Majorana Bound States (MBS) arise in minimal Kitaev chains when the parameters are fine-tuned to a sweet spot. We consider an interacting two-site Kitaev chain coupled to a single-mode cavity and show that the sweet spot condition can be c
Externí odkaz:
http://arxiv.org/abs/2407.12088
Autor:
Soares, Rafael D., Schirò, Marco
Publikováno v:
SciPost Phys. 17, 128 (2024)
Efficient numerical methods are still lacking to probe the unconventional dynamics of quantum many-body systems under non-unitary evolution. In this work, we use Faber polynomials to numerically simulate both the dynamics of non-Hermitian systems and
Externí odkaz:
http://arxiv.org/abs/2406.10135
Isolated quantum many-body systems which thermalize under their own dynamics are expected to act as their own thermal baths, thereby bringing their local subsystems to thermal equilibrium. Here we show that the infinite-dimensional limit of a quantum
Externí odkaz:
http://arxiv.org/abs/2405.19884
Autor:
Vanhoecke, Matthieu, Schirò, Marco
We study the dynamics of a quantum dot coupled to a metallic bath and subject to continuous monitoring of its charge density. The dynamics averaged over measurement noise is described by a dissipative Anderson impurity model with local Markovian deph
Externí odkaz:
http://arxiv.org/abs/2405.17348
Collective effects, such as Dicke superradiant emission, can enhance the performance of a quantum device. Here, we study the heat current flowing between a cold and a hot bath through an ensemble of $N$ qubits, which are collectively coupled to the t
Externí odkaz:
http://arxiv.org/abs/2401.17469
We investigate the periodically driven dynamics of many-body systems, either classical or quantum, finite-dimensional or mean-field, displaying an unbounded phase-space. We find that the inclusion of a smooth periodic drive atop an otherwise ergodic
Externí odkaz:
http://arxiv.org/abs/2401.03478
Publikováno v:
PRX Quantum.5(2024)
Monitored quantum many-body systems display a rich pattern of entanglement dynamics, which is unique to this non-unitary setting. This work studies the effect of quantum jumps on the entanglement dynamics beyond the no-click limit corresponding to a
Externí odkaz:
http://arxiv.org/abs/2312.13419