Results 51 to 60 of about 6,564 (223)
Effective cross-Kerr Hamiltonian for a nonresonant four-level atom [PDF]
, 2008 We derive an effective cross-Kerr Hamiltonian for the four-level atom interacting with three electromagnetic fields in the N configuration. When the atom has relaxed into the ground state, a cross-Kerr nonlinearity arises between two weak probe fields ...
Sinclair, Gary F., Korolkova, Natalia
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Enhancement of few-photon optomechanical effects with cross-Kerr nonlinearity [PDF]
Physical Review A, 2019 Few-photon optomechanical effects are not only important physical evidences for understanding the radiation-pressure interaction between photons and mechanical oscillation, but also have wide potential applications in modern quantum technology.
Zou, Fen +3 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone +8 more
wiley +1 more source
ENHANCED KERR NONLINEARITY IN A FOUR-LEVEL EIT MEDIUM [PDF]
, 2010 The linear and nonlinear response of a four-level EIT system driven by three coherent fields is investigated. It is found that at appropriate atomic parameters, the Kerr nonlinearity can clearly be enhanced. It is also demonstrated that the maximal Kerr
M. SAHRAI, R. SADIGHI, S. H. ASADPOUR
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IEEE Photonics Journal, 2017 This paper investigates the nonlinear polarization effect of 120-Gbps polarization and subcarrier multiplexed unicast signal and 40-Gbps multicast signal on transmission performance of hybrid WDM/OTDM multicast overlay system.
Sukhbir Singh, Surinder Singh
doaj +1 more source
Advanced Science, EarlyView.Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel +3 more
wiley +1 more source
Cross-phase modulation in rubidium-87 [PDF]
, 2009 This thesis explores the theoretical foundations of cross-phase modulation (XPM) between optical fields in the N-configuration atom. This is the process by which the refractive index experienced by one field can be modulated by controlling the intensity
Sinclair, Gary F.
core
Optical Kerr Type Nonlinearity [PDF]
, 2001 The origin of the Kerr type nonlinearity of the medium as a result of the interaction between photons via the Dirac delta-potential is presented in the formalism adopted from the photon wave function approach.
Zaleśny, J.
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Advanced Science, EarlyView.The human brain's imagination, which enables autonomous driving hazard avoidance by completing missing visual information, relies on Gaussian‐stochastic neuron. We report the altermagnetic RuO2 spintronic neurons integrating field‐free switching and intrinsic Gaussian stochasticity, building an all‐spin ANN for high‐quality image repairing and high ...
Junwei Zeng +9 more
wiley +1 more source
Coherence and optical Kerr nonlinearity [PDF]
, 1991 We develop a simple theory to study the effects of Kerr nonlinearity on the electromagnetic field coherence. A symmetric non linear Mach-Zehnder optical fibre interferometer is analyzed. The field is perturbed in phase and amplitude.
Depoortere, Marc, Marc Depoortere
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