Diagnostics of mixed-state topological order and breakdown of quantum memory
Topological quantum memory can protect information against local errors up to finite error
thresholds. Such thresholds are usually determined based on the success of decoding …
thresholds. Such thresholds are usually determined based on the success of decoding …
A short introduction to topological quantum computation
V Lahtinen, J Pachos - SciPost Physics, 2017 - scipost.org
This review presents an entry-level introduction to topological quantum computation--
quantum computing with anyons. We introduce anyons at the system-independent level of …
quantum computing with anyons. We introduce anyons at the system-independent level of …
Uhlmann phase as a topological measure for one-dimensional fermion systems
We introduce the Uhlmann geometric phase as a tool to characterize symmetry-protected
topological phases in one-dimensional fermion systems, such as topological insulators and …
topological phases in one-dimensional fermion systems, such as topological insulators and …
Classification of topological insulators and superconductors out of equilibrium
We establish the existence of a topological classification of many-particle quantum systems
undergoing unitary time evolution. The classification naturally inherits phenomenology …
undergoing unitary time evolution. The classification naturally inherits phenomenology …
Chiral topological superconductors enhanced by long-range interactions
We study the phase diagram and edge states of a two-dimensional p-wave superconductor
with long-range hop** and pairing amplitudes. New topological phases and …
with long-range hop** and pairing amplitudes. New topological phases and …
Nonadiabatic quantum optimization for crossing quantum phase transitions
A Grabarits, F Balducci, BC Sanders, A del Campo - Physical Review A, 2025 - APS
We consider the optimal driving of the ground state of a many-body quantum system across
a quantum phase transition in finite time. In this context, excitations caused by the …
a quantum phase transition in finite time. In this context, excitations caused by the …
Dissipative topological phase transition with strong system-environment coupling
A primary motivation for studying topological matter regards the protection of topological
order from its environment. In this work, we study a topological emitter array coupled to an …
order from its environment. In this work, we study a topological emitter array coupled to an …
Observation of topological Uhlmann phases with superconducting qubits
Topological insulators and superconductors at finite temperature can be characterized by
the topological Uhlmann phase. However, a direct experimental measurement of this …
the topological Uhlmann phase. However, a direct experimental measurement of this …
Dephasing-enhanced Majorana zero modes in two-dimensional and three-dimensional higher-order topological superconductors
The one-dimensional (1D) Kitaev model in the topological phase, with open boundary
conditions, hosts Majorana zero modes. These are fermion parity-odd operators that almost …
conditions, hosts Majorana zero modes. These are fermion parity-odd operators that almost …
Optimal control of Majorana zero modes
Braiding of Majorana zero modes provides a promising platform for quantum information
processing, which is topologically protected against errors. Strictly speaking, however, the …
processing, which is topologically protected against errors. Strictly speaking, however, the …