26 citations · 29 across the 2 of their papers we have counts for
11 papers
Ancilla mediated qubit readout and heralded entanglement between rare-earth dopant ions in crystals
Kamanasish Debnath, Alexander Holm Kiilerich, Klaus Mølmer
Owing to their long excited state lifetimes, rare-earth ions in crystals are widely used in quantum applications. To allow optical readout of the qubit state of individual ions, we…
Quantum interactions with pulses of radiation
Alexander Holm Kiilerich, Klaus Mølmer
This article presents a general master equation formalism for the interaction between travelling pulses of quantum radiation and localized quantum systems. Traveling fields populat…
Integration of the Berry curvature on a qubit state manifold by coupling to a quantum meter system
Peng Xu, Shi-Liang Zhu, Klaus Mølmer +1
We present a scheme that allows integration of the Berry curvature and thus determination of the Chern number of a qubit eigenstate manifold. Our proposal continuously couples the…
Coherent spectral hole burning and qubit isolation by stimulated Raman adiabatic passage
Kamanasish Debnath, Alexander Holm Kiilerich, Albert Benseny +1
We describe how stimulated Raman adiabatic passage (STIRAP) can be applied to create spectral holes in an inhomogeneously broadened system. Due to the robustness of STIRAP, our pro…
Input-Output Theory with Quantum Pulses
Alexander Holm Kiilerich, Klaus Mølmer
We present a formalism that accounts for the evolution of quantum states of travelling light pulses incident on and emanating from a local quantum scatterer such as an atom or a ca…
A dynamical approach to ancilla assisted quantum thermometry
Alexander Holm Kiilerich, Antonella De Pasquale, Vittorio Giovannetti
A scheme for improving the sensitivity of quantum thermometry is proposed where the sensing quantum system used to recover the temperature of an external bath is dynamically couple…