11 papers · 1 filter
Quantifying entanglement in quantum thermodynamics via separability constraints
Joan Alba, Laura Ares, Jan Sperling +1
The role of quantum entanglement in thermodynamical systems remains elusive. Does entanglement result in thermodynamic advantages or does it impose fundamental limitations? Here, w…
Observable nonclassicality witnesses for multiplexed detection systems
Suchitra Krishnaswamy, Martina Jung, Laura Ares +2
We address the problem of constructing witnesses for nonclassical light that are applicable in state-of-the-art photon-counting devices. The key ingredient for the criteria we deri…
Universal entanglement-inspired correlations
Elizabeth Agudelo, Laura Ares, Jan Sperling
Quantum correlations, crucial for the advantage and advancement of quantum science and technology, arise from the impossibility of expressing a quantum state as a tensor product ov…
Local-oscillator-agnostic squeezing detection
Suchitra Krishnaswamy, Dhrithi Maria, Laura Ares +3
We address the problem of measuring nonclassicality in continuous-variable bosonic systems without having access to a known reference signal. To this end, we construct broader clas…
Benchmarking Gaussian and non-Gaussian input states with a hybrid sampling platform
Michael Stefszky, Kai-Hong Luo, Jan-Lucas Eickmann +22
The original boson sampling paradigm-consisting of multiple single-photon input states, a large interferometer, and multi-channel click detection-was originally proposed as a photo…
Quasiprobabilities from incomplete and overcomplete measurements
Jan Sperling, Laura Ares, Elizabeth Agudelo
We discuss the (re-)construction of quasiprobability representations from generic measurements, including noisy ones. Based on the measurement under study, quasiprobabilities and t…