Symmetry breaking and error correction in open quantum systems
Symmetry-breaking transitions are a well-understood phenomenon of closed quantum
systems in quantum optics, condensed matter, and high energy physics. However, symmetry …
systems in quantum optics, condensed matter, and high energy physics. However, symmetry …
Dissipative phase transitions and passive error correction
We classify different ways to passively protect classical and quantum information, ie, we do
not allow for syndrome measurements, in the context of local Lindblad models for spin …
not allow for syndrome measurements, in the context of local Lindblad models for spin …
Geometry and response of Lindbladians
Markovian reservoir engineering, in which time evolution of a quantum system is governed
by a Lindblad master equation, is a powerful technique in studies of quantum phases of …
by a Lindblad master equation, is a powerful technique in studies of quantum phases of …
Symmetries and conservation laws in quantum trajectories: Dissipative freezing
In driven-dissipative systems, the presence of a strong symmetry guarantees the existence
of several steady states belonging to different symmetry sectors. Here we show that when a …
of several steady states belonging to different symmetry sectors. Here we show that when a …
Dissipation-driven quantum phase transitions and symmetry breaking
By considering a solvable driven-dissipative quantum model, we demonstrate that
continuous phase transitions in dissipative systems may occur without an accompanying …
continuous phase transitions in dissipative systems may occur without an accompanying …
Dissipative prethermal discrete time crystal
An ergodic system subjected to an external periodic drive will be generically heated to
infinite temperature. However, if the applied frequency is larger than the typical energy scale …
infinite temperature. However, if the applied frequency is larger than the typical energy scale …
Lindbladians with multiple steady states: theory and applications
VV Albert - arxiv preprint arxiv:1802.00010, 2018 - arxiv.org
Markovian master equations, often called Liouvillians or Lindbladians, are used to describe
decay and decoherence of a quantum system induced by that system's environment. While a …
decay and decoherence of a quantum system induced by that system's environment. While a …
Breaking strong symmetries in dissipative quantum systems: Bosonic atoms coupled to a cavity
CM Halati, A Sheikhan, C Kollath - Physical Review Research, 2022 - APS
In dissipative quantum systems, strong symmetries can lead to the existence of conservation
laws and multiple steady states. In this Letter we investigate a strong symmetry for bosonic …
laws and multiple steady states. In this Letter we investigate a strong symmetry for bosonic …
Symmetry-protected coherent relaxation of open quantum systems
M van Caspel, V Gritsev - Physical Review A, 2018 - APS
We compute the effect of Markovian bulk dephasing noise on the staggered magnetization
of the spin-1 2 XXZ Heisenberg chain, as the system evolves after a Néel quench. For …
of the spin-1 2 XXZ Heisenberg chain, as the system evolves after a Néel quench. For …
Interacting lattice systems with quantum dissipation: A quantum Monte Carlo study
Quantum dissipation arises when a large system can be split in a quantum system and an
environment to which the energy of the former flows. Understanding the effect of dissipation …
environment to which the energy of the former flows. Understanding the effect of dissipation …