70 citations · 199 across the 8 of their papers we have counts for
8 papers
Entanglement quantification in atomic ensembles
Matteo Fadel, Ayaka Usui, Marcus Huber +2
Entanglement measures quantify nonclassical correlations present in a quantum system, but can be extremely difficult to calculate, even more so, when information on its state is li…
Simplifying the design of multilevel thermal machines using virtual qubits
Ayaka Usui, Wolfgang Niedenzu, Marcus Huber
Quantum thermodynamics often deals with the dynamics of small quantum machines interfacing with a large and complex environment. Virtual qubits, collisional models and reset master…
Bayesian parameter estimation using Gaussian states and measurements
Simon Morelli, Ayaka Usui, Elizabeth Agudelo +1
Bayesian analysis is a framework for parameter estimation that applies even in uncertainty regimes where the commonly used local (frequentist) analysis based on the Cramér-Rao boun…
Simulating the same physics with two distinct Hamiltonians
Karol Gietka, Ayaka Usui, Jianqiao Deng +1
We develop a framework and give an example for situations where two distinct Hamiltonians living in the same Hilbert space can be used to simulate the same physics. As an example o…
Spin-orbit coupling in the presence of strong atomic correlations
Ayaka Usui, Thomás Fogarty, Steve Campbell +2
We explore the influence of contact interactions on a synthetically spin-orbit coupled system of two ultracold trapped atoms. Even though the system we consider is bosonic, we show…
Coherent Impurity Transport in an Attractive Binary Bose-Einstein condensate
M. J. Edmonds, J. L. Helm, Th. Busch
We study the dynamics of a soliton-impurity system modeled in terms of a binary Bose-Einstein condensate. This is achieved by `switching off' one of the two self-interaction scatte…