Results 31 to 40 of about 3,411 (121)
Mean parity of single quantum excitation of some optical fields in thermal environments
, 2010 The mean parity (the Wigner function at the origin) of excited binomial states, excited coherent states and excited thermal states in thermal channel is investigated in details.
Carmichael H J +6 more
core +1 more source
Operational discord measure for Gaussian states with Gaussian measurements
New Journal of Physics, 2015 We introduce an operational discord-type measure for quantifying nonclassical correlations in bipartite Gaussian states based on using Gaussian measurements. We refer to this measure as operational Gaussian discord (OGD).
Saleh Rahimi-Keshari +2 more
doaj +1 more source
Ghost Interference with Optical Parametric Amplifier
, 2004 The 'Ghost' interference experiment is analyzed when the source of entangled photons is a multimode Optical Parametric Amplifier(OPA) whose weak limit is the two-photon Spontaneous Parametric Downconversion(SPDC) beam.
D. F. Walls +6 more
core +1 more source
Implementation of quantum state tomography for time-bin qudits
New Journal of Physics, 2017 Quantum state tomography (QST) is an essential tool for characterizing an unknown quantum state. Recently, QST has been performed for entangled qudits based on orbital angular momentum, time-energy uncertainty, and frequency bins.
Takuya Ikuta, Hiroki Takesue
doaj +1 more source
Single electron relativistic clock interferometer
New Journal of Physics, 2016 Although time is one of the fundamental notions in physics, it does not have a unique description. In quantum theory time is a parameter ordering the succession of the probability amplitudes of a quantum system, while according to relativity theory each ...
P A Bushev +4 more
doaj +1 more source
Time-optimal navigation through quantum wind
New Journal of Physics, 2015 The quantum navigation problem of finding the time-optimal control Hamiltonian that transports a given initial state to a target state through quantum wind, that is, under the influence of external fields or potentials, is analyzed.
Dorje C Brody +2 more
doaj +1 more source
Risk Factor Extraction in Financial Disclosures via a Knowledge Graph–Enhanced Language Model
International Journal of Intelligent Systems, Volume 2026, Issue 1, 2026.Risk disclosures play a crucial role in the investment decision‐making processes for investors. However, extracting relevant variables from unstructured financial text poses a nontrivial challenge. In this paper, we propose RiskBERT, a large language model (LLM) trained on financial texts and risk knowledge graphs, specifically designed for risk ...
Yangcheng Liu +4 more
wiley +1 more source
Asymptotic Floquet states of open quantum systems: the role of interaction
New Journal of Physics, 2017 When a periodically modulated many-body quantum system is weakly coupled to an environment, the combined action of these temporal modulations and dissipation steers the system towards a state characterized by a time-periodic density operator.
M Hartmann +4 more
doaj +1 more source
Associations between sleep conditions and body composition states: results of the EPISONO study
Journal of Cachexia, Sarcopenia and Muscle, Volume 10, Issue 5, Page 962-973, October 2019., 2019 Abstract Background Evidence suggests anthropometric indicators of obesity are associated with changes in sleep quality and quantity, and the presence of obstructive sleep apnoea (OSA). Investigations including diverse and objective evaluations of sleep and body composition are scarce.
Ronaldo D. Piovezan +6 more
wiley +1 more source
Observing the nonclassical nature of ultra-broadband bi-photons at ultrafast speed
New Journal of Physics, 2014 We observe at record-high speed the nonclassical nature of ultra-broadband bi-photons, reducing the measurement time by four orders of magnitude compared to standard techniques of Hong–Ou–Mandel interference or sum-frequency generation.
Yaakov Shaked +3 more
doaj +1 more source