530 citations · 1.3k across the 14 of their papers we have counts for
14 papers
Dissipative phase transitions and passive error correction
Yu-Jie Liu, Simon Lieu
We classify different ways to passively protect classical and quantum information, i.e. we do not allow for syndrome measurements, in the context of local Lindblad models for spin…
Bounds on Autonomous Quantum Error Correction
Oles Shtanko, Yu-Jie Liu, Simon Lieu +2
Autonomous quantum memories are a way to passively protect quantum information using engineered dissipation that creates an ``always-on'' decoder. We analyze Markovian autonomous d…
Candidate for a passively protected quantum memory in two dimensions
Simon Lieu, Yu-Jie Liu, Alexey V. Gorshkov
An interesting problem in the field of quantum error correction involves finding a physical system that hosts a ``passively protected quantum memory,'' defined as an encoded qubit…
Clustering of steady-state correlations in open systems with long-range interactions
Andrew Y. Guo, Simon Lieu, Minh C. Tran +1
Lieb-Robinson bounds are powerful analytical tools for constraining the dynamic and static properties of non-relativistic quantum systems. Recently, a complete picture for closed s…
Kramers' degeneracy for open systems in thermal equilibrium
Simon Lieu, Max McGinley, Oles Shtanko +2
Kramers' degeneracy theorem underpins many interesting effects in quantum systems with time-reversal symmetry. We show that the generator of dynamics for Markovian open fermionic s…
Symmetry breaking and error correction in open quantum systems
Simon Lieu, Ron Belyansky, Jeremy T. Young +3
Symmetry-breaking transitions are a well-understood phenomenon of closed quantum systems in quantum optics, condensed matter, and high energy physics. However, symmetry breaking in…
Preserving orbital order in a layered manganite by ultrafast hybridized band excitation
L. Shen, S. Mack, G. Dakovski +19
In the mixed-valence manganites, a near-infrared laser typically melts the orbital and spin order simultaneously, corresponding to the photoinduced $d…
Tenfold Way for Quadratic Lindbladians
Simon Lieu, Max McGinley, Nigel R. Cooper
We uncover a topological classification applicable to open fermionic systems governed by a general class of Lindblad master equations. These `quadratic Lindbladians' can be capture…
Non-Hermitian Majorana modes protect degenerate steady states
Simon Lieu
We introduce non-Hermitian generalizations of Majorana zero modes (MZMs) which appear in the topological phase of a weakly dissipative Kitaev chain coupled to a Markovian bath. Not…
Topological symmetry classes for non-Hermitian models and connections to the bosonic Bogoliubov-de Gennes equation
Simon Lieu
The Bernard-LeClair (BL) symmetry classes generalize the ten-fold way classes in the absence of Hermiticity. Within the BL scheme, time-reversal and particle-hole come in two flavo…
Disorder Protected and Induced Local Zero-Modes in Longer-Range Kitaev Chains
Simon Lieu, Derek K. K. Lee, Johannes Knolle
We study the effects of disorder on a Kitaev chain with longer-range hopping and pairing terms which is capable of forming local zero energy excitations and, hence, serves as a min…
Intertwined Superfluid and Density Wave Order in a -Orbital Bose Condensate
Simon Lieu, Andrew F. Ho, Derek K. K. Lee +1
We study a continuum model of the weakly interacting Bose gas in the presence of an external field with minima forming a triangular lattice. The second lowest band of the single-pa…
Topological phases in the non-Hermitian Su-Schrieffer-Heeger model
Simon Lieu
We address the conditions required for a topological classification in the most general form of the non-Hermitian Su-Schrieffer-Heeger (SSH) model. Any chirally-symmet…
\textit{Ab-initio} Tight-Binding Hamiltonian for Transition Metal Dichalcogenides
Shiang Fang, Rodrick Kuate Defo, Sharmila N. Shirodkar +3
We present an accurate \textit{ab-initio} tight-binding hamiltonian for the transition-metal dichalcogenides, MoS, MoSe, WS, WSe, with a minimal basis (the \textit{…