Laser Phase Spectroscopy in Closed-Loop Multilevel Schemes

Arimondo, E.

doi:10.1007/978-3-319-64346-5_36

Exploring the World With the Laser 2018

DOI: 10.1007/978-3-319-64346-5_36

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Laser Phase Spectroscopy in Closed-Loop Multilevel Schemes

E. Arimondo¹

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2024

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Cited by 2 publications

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“…In this context, it is interesting to exploit the multilevel structure of a resonant media such as atoms or atom-like systems [9], in order to engineer the generation of quantum states. More specifically, in this Letter, we propose a scheme for the heralded generation of singlephoton color entangled states i.e., states where a single photon excitation is simultaneously shared by two distinct frequency modes of light, exploiting indistinguishably between four-wave mixing processes.…”

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confidence: 99%

Engineering of heralded narrowband color-entangled states

2019

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Efficient heralded generation of entanglement together with its manipulation is of great importance for quantum communications. In addition, states generated with bandwidths naturally compatible with atomic transitions allow a more efficient mapping of light into matter which is an essential requirement for long distance quantum communications. Here we propose a scheme where the indistinguishability between two spontaneous four-wave mixing processes is engineered to herald generation of single-photon frequency-bin entangled states, i.e. single-photons shared by two distinct frequency modes. We show that entanglement can be optimised together with the generation probability, while maintaining absorption negligible. Besides, the scheme illustrated for cold rubidium atoms is versatile and can be implemented in several other physical systems.t e x i t s h a 1 _ b a s e 6 4 = " n V q k N v e t 0 T l j / 7 a y O X i 1 8 h + 5 h M M = " > A A A B + 3 i c d V D L S g M x F M 3 4 r P U 1 2 q W b Y B F c D V M R H 7 u i G 5 c V H F t o x y G T Z t r Q P I Y k I w x D / R U 3 L l T c + i P u / B s z b Q W f B 0 I O 5 9 x 7 c 3 P i l F F t f P / d m Z t f W F x a r q x U V 9 f W N z b d r e 1 r L T O F S Y A l k 6 o T I 0 0 Y F S Q w 1 D D S S R V B P G a k H Y / O S 7 9 9 S 5 S m U l y Z P C U h R w N B E 4 q R s V L k 1 n q S k w G K C q R v e q m i n I y r k V v 3 v S O / B P x N G t 7 k 9 u t g h l b k v v X 6 E m e c C I M Z 0 r r b 8 F M T F k g Z i p k d 2 M s 0 S R E e o Q H p W i o Q J z o s J s u P 4 Z 5 V + j C R y h 5 h 4 E T 9 2 l E g r n X O Y 1 v J k R n q n 1 4 p / u V 1 M 5 O c h A U V a W a I w N O H k o x B I 2 G Z B O x T R b B h u S U I K 2 p 3 h X i I F M L G 5 l W G 8 P l T + D 8 J D r x T z 7 8 8 r D f P Z m l U w A 7 Y B f u g A Y 5 B E 1 y A F g g A B j m 4 B 4 / g y b l z H p x n 5 2 V a O u f M e m r g G 5 z X D 1 A f l L 8 = < / l a t e x i t > < l a t e x i t s h a 1 _ b a s e 6 4 = " n V q k N v e t 0 T l j / 7 a y O X i 1 8 h + 5 h M M = " > A A A B + 3 i c d V D L S g M x F M 3 4 r P U 1 2 q W b Y B F c D V M R H 7 u i G 5 c V H F t o x y G T Z t r Q P I Y k I w x D / R U 3 L l T c + i P u / B s z b Q W f B 0 I O 5 9 x 7 c 3 P i l F F t f P / d m Z t f W F x a r q x U V 9 f W N z b d r e 1 r L T O F S Y A l k 6 o T I 0 0 Y F S Q w 1 D D S S R V B P G a k H Y / O S 7 9 9 S 5 S m U l y Z P C U h R w N B E 4 q R s V L k 1 n q S k w G K C q R v e q m i n I y r k V v 3 v S O / B P x N G t 7 k 9 u t g h l b k v v X 6 E m e c C I M Z 0 r r b 8 F M T F k g Z i p k d 2 M s 0 S R E e o Q H p W i o Q J z o s J s u P 4 Z 5 V + j C R y h 5 h 4 E T 9 2 l E g r n X O Y 1 v J k R n q n 1 4 p / u V 1 M 5 O c h A U V a W a I w N O H k o x B I 2 G Z B O x T R b B h u S U I K 2 p 3 h X i I F M L G 5 l W G 8 P l T + D 8 J D r x T z 7 8 8 r D f P Z m l U w A 7 Y B f u g A Y 5 B E 1 y A F g g A B j m 4 B 4 / g y b l z H p x n 5 2 V a O u f M e m r g G 5 z X D 1 A f l L 8 = < / l a t e x i t > < l a t e x i t s h a 1 _ b a s e 6 4 = " n V q k N v e t 0 T l j / 7 a y O X i 1 8 h + 5 h M M = " > A A A B + 3 i c d V D ...

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confidence: 99%

Engineering of heralded narrowband color-entangled states

2019

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Terahertz electromagnetically induced optical limiter in asymmetric coupled quantum wells

Parkan,

Mahmoudi

2024

Sci Rep

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This paper explores the optical limiting (OL) characteristics of an input probe field within a closed-loop asymmetric coupled quantum well (ACQW) system. Our research reveals that the application of Terahertz (THz) coupling laser fields can induce the OL behavior within the THz domain in the ACQW. The study demonstrates that revers saturable absorption arises through cross-Kerr nonlinearity, contributing to the emergence of OL behavior. Additionally, it is shown that the self-defocusing is induced concurrently within the system, further enhancing nonlinear refractive OL effects. Furthermore, it is revealed that the properties of induced OL can be manipulated by adjusting the characteristics of the applied fields. The discovered outcomes hold potential utility in safeguarding sensors and detectors operating within the THz band.

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Laser Phase Spectroscopy in Closed-Loop Multilevel Schemes

Cited by 2 publications

References 47 publications

Engineering of heralded narrowband color-entangled states

Engineering of heralded narrowband color-entangled states

Terahertz electromagnetically induced optical limiter in asymmetric coupled quantum wells

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