[PDF] Top 20 Creating spatially entangled 4-photon states by parametric down conversion
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Creating spatially entangled 4-photon states by parametric down conversion
... Figure 5.1: Schematic outline of the setup that creates and analyses spatial en- tanglement. A frequency-doubled Ti:Sapphire laser produces laser pulses of ∼ 2 ps duration at a wavelength of 413.2 nm and is focussed by ... See full document
64
Type-I spontaneous parametric down-conversion with a strongly focused pump
... Spontaneous parametric down-conversion (SPDC) is a nonlinear optical process in which some photons from a laser beam can effectively be split into two lower frequency photons ...of ... See full document
8
Bloch-Messiah decomposition and Magnus expansion for parametric down-conversion with monochromatic pump: role of the gain
... Abstract. We consider the effect of different orders of Magnus expansion for the field transformation in type-I parametric down-conversion with a monochro- matic pump. The exact solution, existing in ... See full document
7
Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems
... that photon pairs produced in spontaneous parametric down-conversion (SPDC) are naturally entangled in their OAM ...the down-conversion process and hence for a Gaussian (ℓ ... See full document
7
Spontaneous Parametric Down-Conversion in a Beta Barium Borate Crystal
... beam as the He-Ne is much easier to see than the difficult to see diode laser. To ensure that the lasers are traveling the same path we placed two irises in the beam path. In order to control the polarization and ... See full document
14
Towards spontaneous parametric down conversion from monolayer MoS2
... single photon counting electronic device and collection efficiency, no significant quantum cor- relations could be ...single photon emission could be within experimental reach with slightly better ... See full document
7
Non-Hermitian quantum and classical integrated nonlinear photonics
... that photon-pair generation through spontaneous parametric down-conversion in a nonlinear waveguide with scattering or material losses can be effectively emulated by classical laser light ... See full document
117
Classical and quantum scattering in optical systems
... mixed entangled states in a controllable and reproducible ...Werner states [79] and maximally entangled mixed states (MEMS) [80] based upon twin-photon generation by spontaneous ... See full document
112
Full-Field Quantum Correlations of Spatially Entangled Photons
... High-dimensional entangled photons are of great inter- est in various areas in quantum information, as they prom- ise high-density encoding of quantum information [1,2], are more robust against noise and ... See full document
5
Information communicated by entangled photon pairs
... the entangled photon source, the information channel and the ...the photon pairs are generated by spontaneous parametric down ... See full document
9
Polarization entanglement in a crystal with threefold symmetry
... of parametric down-conversion is fully determined by the pump polarization when the pump, signal, and idler beams are collinear with the symmetry axis of the nonlinear ... See full document
7
Precise quantum tomography of photon pairs with entangled orbital angular momentum
... of photon pairs generated by parametric down-conversion with orbital angular momentum (OAM) ...the down- converted ...OAM states ±` and superpositions thereof, with ` = 1 , 2 , ... See full document
12
On demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability
... the GaAs membrane and the gold mirror, forming a constructive interference between the downward and upward light. Our numerical simulation in Fig. 1c shows that for our chosen parameters, a Purcell factor of ~20 and an ... See full document
13
SQEEZED AND ENTANGLED STATES OF SINGLE SPIN
... dependent basic observables (Gell-Mann matrices) specifying a given state of qutrit [29]. At the same time, three-state system can also be associated with the lower dynamic symmetry SU(2) ⊂ SU(3), corre- sponding to ... See full document
20
Decay of Maximally Entangled Bell States
... maximally entangled states we found exponential decay of ...maximally entangled bell states and for singlet states the qubit entanglement exponentially ...maximally entangled ... See full document
11
Generation, manipulation and detection of NIR and MIR entangled photon pairs
... The increasing ability of exciting the spontaneous nonlinear paramet- ric processes of SPDC and FWM, led to an impetuous development in the study of quantum states of light. The so called second quan- tum ... See full document
233
Bloch theory of entangled photon generation in non-linear photonic crystals
... consider down conversion of 750 nm photons to degenerate 1500 nm pho- ton ...and down-converted photons would propagate, the pump in the second band, the down-converted photons in the first ... See full document
11
Statistics of photon-subtracted and photon-added states
... of photon subtracted and photon added ...that photon subtraction will re- sult in a increase in the mean photon number if the initial state was super-Poissonian and that successful ... See full document
15
Time bin entangled photon pairs from Bragg reflection waveguides
... Next, we measure the single and coincidence counts as a function of pump power to characterize the photon-pair properties of the emitted PDC light. We evaluate the Klyshko efficiency 44 for signal (idler) as the ... See full document
10
Nonseparability of Shared Intentionality
... However, the other’s expressive behaviour is never isolated or separated. There is always and already a shared or common ground that influences how behaviour is perceived. Therefore, empathetically relating to others ... See full document
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