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Operator growth and spread complexity in open quantum systems
Commonly, the notion of ‘‘quantum chaos’’ refers to the fast scrambling of information throughout complex …
Eoin Carolan
,
Anthony Kiely
,
Steve Campbell
,
Sebastian Deffner
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First passage times for continuous quantum measurement currents
The First Passage Time (FPT) is the time taken for a stochastic process to reach a desired threshold. It finds wide application in …
Michael J. Kewming
,
Anthony Kiely
,
Steve Campbell
,
Gabriel T. Landi
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Multiparameter critical quantum metrology with impurity probes
Quantum systems can be used as probes in the context of metrology for enhanced parameter estimation. In particular, the delicacy of …
George Mihailescu
,
Abolfazl Bayat
,
Steve Campbell
,
Andrew K. Mitchell
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Quantum information scrambling in two-dimensional Bose-Hubbard lattices
It is a well-understood fact that the transport of excitations throughout a lattice is intimately governed by the underlying …
Devjyoti Tripathy
,
Akram Touil
,
Bartłomiej Gardas
,
Sebastian Deffner
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Fisher information rates in sequentially measured quantum systems
We consider the impact that temporal correlations in the measurement statistics can have on the achievable precision in a sequential …
Eoin O'Connor
,
Steve Campbell
,
Gabriel T. Landi
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Scalar QED model for polarizable particles in thermal equilibrium or in hyperbolic motion in vacuum
We consider a scalar QED model for the frictional force and the momentum fluctuations of a polarizable particle in thermal equilibrium …
Kanu Sinha
,
Peter W. Milonni
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Efficiency optimization in quantum computing: balancing thermodynamics and computational performance
We investigate the computational efficiency and thermodynamic cost of the D-Wave quantum annealer under reverse-annealing with and …
Tomasz Śmierzchalski
,
Zakaria Mzaouali
,
Sebastian Deffner
,
Bartłomiej Gardas
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Information scrambling–a quantum thermodynamic perspective
Recent advances in quantum information science have shed light on the intricate dynamics of quantum many-body systems, for which …
Akram Touil
,
Sebastian Deffner
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Pointer states and quantum Darwinism with two-body interactions
Quantum Darwinism explains the emergence of classical objectivity within a quantum universe. However, to date most research in quantum …
Paul Duruisseau
,
Akram Touil
,
Sebastian Deffner
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Detailed fluctuation theorem from the one-time measurement scheme
We study the quantum fluctuation theorem in the one-time measurement (OTM) scheme, where the work distribution of the backward process …
Kenji Maeda
,
Tharon Holdsworth
,
Sebastian Deffner
,
Akira Sone
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