Quasiprobability distributions for quantum-optical coherence and beyond
J Sperling, W Vogel - Physica Scripta, 2020 - iopscience.iop.org
We study the quasiprobability representation of quantum light, as introduced by Glauber and
Sudarshan, for the unified characterization of quantum phenomena. We begin with …
Sudarshan, for the unified characterization of quantum phenomena. We begin with …
Quantum correlations and global coherence in distributed quantum computing
Deviations from classical physics when distant quantum systems become correlated are
interesting both fundamentally and operationally. There exist situations where the …
interesting both fundamentally and operationally. There exist situations where the …
Quantum correlations in nonlocal boson sampling
Determination of the quantum nature of correlations between two spatially separated
systems plays a crucial role in quantum information science. Of particular interest is the …
systems plays a crucial role in quantum information science. Of particular interest is the …
How squeezed states both maximize and minimize the same notion of quantumness
AZ Goldberg, K Heshami - Physical Review A, 2021 - APS
Beam splitters are routinely used for generating entanglement between modes in the optical
and microwave domains, requiring input states that are not convex combinations of coherent …
and microwave domains, requiring input states that are not convex combinations of coherent …
Ultrafine entanglement witnessing
Entanglement witnesses are invaluable for efficient quantum entanglement certification
without the need for expensive quantum state tomography. Yet, standard entanglement …
without the need for expensive quantum state tomography. Yet, standard entanglement …
Information-theoretic approach to atomic spin nonclassicality
H Dai, S Luo - Physical Review A, 2019 - APS
Nonclassicality of light has been studied, both extensively and intensively, in terms of optical
coherent states, and various quantifiers for nonclassicality of light have been introduced in …
coherent states, and various quantifiers for nonclassicality of light have been introduced in …
Continuous-variable Clauser-Horne Bell-type inequality: A tool to unearth the nonlocality of continuous-variable quantum-optical systems
We consider a continuous-variable Clauser-Horne Bell-type inequality to study nonlocality in
four-mode continuous-variable systems, which goes beyond two-photon states and can be …
four-mode continuous-variable systems, which goes beyond two-photon states and can be …
Environment-induced quantum coherence spreading of a qubit
MB Pozzobom, J Maziero - Annals of Physics, 2017 - Elsevier
We make a thorough study of the spreading of quantum coherence (QC), as quantified by
the l 1-norm QC, when a qubit (a two-level quantum system) is subjected to noise quantum …
the l 1-norm QC, when a qubit (a two-level quantum system) is subjected to noise quantum …
[HTML][HTML] Gaussian entanglement generation from coherence using beam-splitters
The generation and quantification of quantum entanglement is crucial for quantum
information processing. Here we study the transition of Gaussian correlation under the effect …
information processing. Here we study the transition of Gaussian correlation under the effect …
Entanglement verification of noisy NOON states
Entangled quantum states, such as NOON states, are of major importance for quantum
technologies due to their quantum-enhanced performance. At the same time, their quantum …
technologies due to their quantum-enhanced performance. At the same time, their quantum …