Witnessing the nonclassical nature of gravity in the presence of unknown interactions
General relativity is a classical field theory and therefore does not predict gravitationally
induced entanglement. As such, recent proposals have focused on seeking an empirical …
induced entanglement. As such, recent proposals have focused on seeking an empirical …
Practical and reliable error bars in quantum tomography
Precise characterization of quantum devices is usually achieved with quantum tomography.
However, most methods which are currently widely used in experiments, such as maximum …
However, most methods which are currently widely used in experiments, such as maximum …
Experimental few-copy multipartite entanglement detection
Many future quantum technologies rely on the generation of entangled states. Quantum
devices will require verification of their operation below some error threshold, but the …
devices will require verification of their operation below some error threshold, but the …
Single-copy entanglement detection
One of the main challenges of quantum information is the reliable verification of quantum
entanglement. The conventional detection schemes require repeated measurement on a …
entanglement. The conventional detection schemes require repeated measurement on a …
Monte Carlo sampling from the quantum state space. I
High-quality random samples of quantum states are needed for a variety of tasks in quantum
information and quantum computation. Searching the high-dimensional quantum state …
information and quantum computation. Searching the high-dimensional quantum state …
Entanglement witnesses for indistinguishable particles
We study the problem of witnessing entanglement among indistinguishable particles. For
this purpose, we derive a set of equations which results in necessary and sufficient …
this purpose, we derive a set of equations which results in necessary and sufficient …
High posterior density ellipsoids of quantum states
C Ferrie - New Journal of Physics, 2014 - iopscience.iop.org
Regions of quantum states generalize the classical notion of error bars. High posterior
density (HPD) credible regions are the most powerful of region estimators. However, they …
density (HPD) credible regions are the most powerful of region estimators. However, they …
Quantum model averaging
C Ferrie - New Journal of Physics, 2014 - iopscience.iop.org
Standard tomographic analyses ignore model uncertainty. It is assumed that a given model
generated the data and the task is to estimate the quantum state, or a subset of parameters …
generated the data and the task is to estimate the quantum state, or a subset of parameters …
Entanglement verification in quantum networks with tampered nodes
In this paper, we consider the problem of entanglement verification across the quantum
memories of any two nodes of a quantum network. Its solution can be a means for detecting …
memories of any two nodes of a quantum network. Its solution can be a means for detecting …
Detection of nonlocal superpositions
We study in theory and experiment the verification of the Schmidt number of quantum
correlated radiation fields. This measure of entanglement counts the number of global …
correlated radiation fields. This measure of entanglement counts the number of global …