- Tytuł:
- Enhancement of the Hong-Mandel higher-order squeezing and amplitude odd-power squeezing in even coherent state by its superposition with vacuum state
- Autorzy:
-
Kumar, P.
Kumar, R.
Prakash, H. - Powiązania:
- https://bibliotekanauki.pl/articles/1054884.pdf
- Data publikacji:
- 2017-06
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
coherent state
non-classical features of optical field
the Hong-Mandel higher-order squeezing
amplitude n th-power squeezing
phase shifting operator - Opis:
- We study the Hong-Mandel 2n th-order squeezing of the Hermitian operator, X_θ ≡ X₁cosθ + X₂sinθ and amplitude n th-power squeezing of the Hermitian operator, Y_θ^{(n)} ≡ Y₁^{(n)}cosθ + Y₂^{(n)}sinθ in superposed state |ψ⟩ = K[|α,+⟩ + re^{iφ}|0⟩], of vacuum state and even coherent state defined by |α,+⟩ = K_+[|α⟩+|-α⟩]. Here operators X_{1,2} are defined by X₁ + iX₂ = a, operators Y_{1,2}^{(n)} are defined by Y₁^{(n)} + iY₂^{(n)} = aⁿ, a is the annihilation operator, α, θ, r and φ are arbitrary and the only restriction on these is the normalization condition of the superposed state. We show that the Hong-Mandel 2n th-order squeezing and amplitude odd-power squeezing exhibited by even coherent state enhance in its superposition with vacuum state. Variations of these higher-orders squeezing with different parameters near its maxima have also been discussed.
- Źródło:
-
Acta Physica Polonica A; 2017, 131, 6; 1485-1490
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł