4 papers · 1 filter
Emergent Non-Markovian Nonlinear Qubit From Collective Spin Interactions
Gregory T. Carroll, Michael R. Geller, Andre Erpenbeck
Open-system descriptions are typically introduced by coupling a quantum system to an external environment. Here we show that a closed interacting many-body system can itself genera…
Quantum simulation of a qubit with non-Hermitian Hamiltonian
Anastashia Jebraeilli, Michael R. Geller
Modeling non-Hermitian Hamiltonians is increasingly important in classical and quantum domains, especially when studying open systems, symmetry, and resonances. However, the q…
From spin squeezing to fast state discrimination
Michael R. Geller
There is great interest in generating and controlling entanglement in Bose-Einstein condensates and similar ensembles for use in quantum computation, simulation, and sensing. One c…
Protocol for nonlinear state discrimination in rotating condensate
Michael R. Geller
Nonlinear mean field dynamics enables quantum information processing operations that are impossible in linear one-particle quantum mechanics. In this approach, a register of bosoni…