Observable measure of quantum coherence in finite dimensional systems

D Girolami - Physical review letters, 2014 - APS
Quantum coherence is the key resource for quantum technology, with applications in
quantum optics, information processing, metrology, and cryptography. Yet, there is no …

Quantum frequency synchronization of distant clock oscillators

MA Ullah, J Ur Rehman, H Shin - Quantum Information Processing, 2020 - Springer
We propose the protocol for noise-resilient frequency synchronization (syntonization) of
distant clocks' local oscillators through a distributed quantum network. The syntonization is …

[HTML][HTML] Witnessing multipartite entanglement by detecting asymmetry

D Girolami, B Yadin - Entropy, 2017 - mdpi.com
The characterization of quantum coherence in the context of quantum information theory and
its interplay with quantum correlations is currently subject of intense study. Coherence in a …

System-time entanglement in a discrete-time model

A Boette, R Rossignoli, N Gigena, M Cerezo - Physical Review A, 2016 - APS
We present a model of discrete quantum evolution based on quantum correlations between
the evolving system and a reference quantum clock system. A quantum circuit for the model …

History states of one-dimensional quantum walks

F Lomoc, AP Boette, N Canosa, R Rossignoli - Physical Review A, 2022 - APS
We analyze the application of the history state formalism to quantum walks. The formalism
allows one to describe the whole walk through a pure quantum history state, which can be …

Optimal squeezing in resonance fluorescence via atomic-state purification

P Grünwald, W Vogel - Physical Review Letters, 2012 - APS
Squeezing of atomic resonance fluorescence is shown to be optimized by a properly
designed environment, which can be realized by a quasiresonant cavity. Optimal squeezing …

Delayed feedback control in quantum transport

C Emary - … Transactions of the Royal Society A …, 2013 - royalsocietypublishing.org
Feedback control in quantum transport has been predicted to give rise to several interesting
effects, among them quantum state stabilization and the realization of a mesoscopic …

Detecting the degree of macroscopic quantumness using an overlap measurement

H Jeong, C Noh, S Bae, DG Angelakis… - Journal of the Optical …, 2014 - opg.optica.org
We investigate how to experimentally detect a recently proposed measure to quantify
macroscopic quantum superpositions [Phys. Rev. Lett. 106, 220401 (2011) …

Optimal squeezing in the resonance fluorescence of single-photon emitters

P Grünwald, W Vogel - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
The possibilities and perspectives of squeezed-light emission are studied for coherently
driven single-photon sources, such as atoms and quantum dots. Maximal squeezing is …

Entanglement monogamy in indistinguishable particle systems

S Das, G Paul, R Sengupta - Scientific Reports, 2023 - nature.com
Recently, it has been realized that indistinguishability is a resource for quantum information
processing. A new method to represent the indistinguishable particles by Franco et al.(Sci …