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انجمن اپتیک و فوتونیک ایران

The thermal effects of dielectric media on non-classical properties of nonlinear coherent state on a sphere

Ehsan Amooghorban, Ali Mahdifar, roghayeh asadi

Published Feb 15, 2014• 0 citations
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Abstract

In this paper, the thermal effects of the dispersive and absorbing dielectric slab on non-classical properties of the incident states are investigated. Accordingly, we consider the incident rightward and leftward states on the dielectric slab as a nonlinear coherent state on a sphere and the quantum vacuum state, respectively. Then, by modeling the electric permittivity function of the dielectric slab with the Lorentz model, the quadrature squeezing and the Mandel parameter are calculated.

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Scattering of nonlinear coherent state on sphere by an absorptive and dispersive dielectric slab

roghayeh asadi, Ehsan Amooghorban, Ali Mahdifar

In this paper, we examine the modification of specific nonclassical properties of the nonlinear coherent state on sphere upon perpendicular propagation through an absorptive and dispersive dielectric slab at finite temperature. For this purpose, by describing the dielectric dispersion of the slab by Lorentz model, the quadrature squeezing and the Mandel parameter are evaluated for the transmitted state. A generalization of single-mode nonlinear coherent state to the continuum-mode is considered. The degree of second-order coherence is instead calculated for a continuum nonlinear coherent state on sphere, and the quantum noise effects produced by transmission through the slab on the antibunching feature are examined. We find that near the medium resonance the detrimental effect of the loss and thermal fluctuations of the slab are not compensate with increasing the physical space curvature of the incident state.

arXiv:1704.01521•Apr 5, 2017•0 citations

Effect of dielectric medium on the nonclassical properties of nonlinear sphere coherent states

Ehsan Amooghorban, Ali Mahdifar

In order to investigate the effect of a medium with dissipation and dispersion and also the curvature of the physical space on the properties of the incident quantum states, we use the quantization of electromagnetic field based on phenomenological approach to obtain input-output relations between radiations on both sides of dielectric slab. By using these relations the fidelity, the Wigner function, and also the quantum correlation of the outgoing state through dielectric slab are obtained for a situation in which the rightward incident state is a nonlinear coherent state on a sphere and the leftward incident state is a vacuum state. Here, the incident states are considered monochromatic and the modeling of the medium is given by the Lorentz' model. Accordingly, we study nonclassical properties of the output states such as the quantum entanglement. It will be observed that the nonclassical properties of the outgoing states depend strongly on the optical property of the medium and also on the curvature of the physical state.

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Propagation of nonclassical light through an absorbing and dispersive slab

M. Artoni, R. Loudon

We calculate the effects of perpendicular propagation through a dispersive and absorbing dielectric slab at arbitrary temperatures on specific nonclassical properties of an incident light field. The transmitted signal is assumed to be measured by a detector that receives radiation only from the direction normal to the slab surfaces. Squeezing and nonclassical counting statistics of the transmitted light are evaluated for continuous-wave squeezed states incident on both sides of the slab. The degree of second-order coherence is instead evaluated for an N-photon incident pulse, and the effects of transmission through the slab on its antibunching are calculated.

Physical Review A•Mar 1, 1999•32 citations

The quantum optical properties of nonlinear coherent states on a sphere in the presence of a dielectric media

Ehsan Amooghorban, Ali Mahdifar, roghayeh asadi

In this paper, we investigate the medium effects of a dispersive and absorbing dielectric mater on the quantum optical properties of incident input states at zero temperature .For this purpose, we calculate the quadrature squeezing, the Mandel parameter and the second-order quantum correlation of output states, by using the phenomenological approach and modeling the dielectric slab by the Lorentz model, for a situation that incident states on the right and left side of the dielectric slab are nonlinear coherent states on a sphere and quantum vacuum state, respectively. Keyword : Quantization of electromagnetic waves, Nonlinear coherent states on a sphere, quadrature squeezing, Mandel parameter, second-order correlation. یگژیو تلاح یموتناوک کیتپا یاه کی روضح رد هرک حطس یطخریغ سودمه یاه هدام ید ی کیرتکلا ىاتشلوع ىاؼحا ، یذه یلع شف یذػا يلس هیضيف شگ ،ملع ذىـاد ،دشوشؿ اگـاد 8 ات 01 يوت 0۱49 صاشيؿ یتعص اگـاد ، 941 1 همدقم داه هی سد س ساـتا ید ی لئاؼه لوج صا هیشتىلا ىاذيه ت و تػا یهتاو هيهایدشتىلا یا داه هی سضح سد یؼيعاغهشتىلا ؾثغل ی طتشه شیزپ یشظ سد چشگا .تػا هيهایدشتىلا ی یه هيػلاو ىات ىاذيه تذؿ یشظ سد ظػته یا س یهتاو ی اس دج یهتاو یساهآ لئاؼه صا یخشت اها ،دسآ تػذت یو و ذساد ىآ ىات تػذت یىيػلاو تاثػاحه ات اس ا داه هی سضح علا سد .دسآ ؾثغل ی شييغت ثعات شیزپ یه یهتاو ءلاخ ىاذيه ضيخ تفا فاخ و دؿ لتال ةول ییاجتاج شویصاو شثا سد فاخ يیا صا یضعت صاذا .ذتؼ یشيگ ید هیشتىلا عتات ظػت لاوعه ا یىیشتىلا یدسزگ ظلتخه ( )   یه فيصت اجآ صا .ذؿ كثع شت ،تػا فلاتا شگايت عتات يیا یهه توؼل و يضل تح سع ت ،فلاتا ـضيخ تفا ی دج ضي ف ن اهاػ سد ،س يیا صا .دساد لهاؿ یىيتپا یا ید هیشتىلا تلاح یىيتپا متاو شثا یػسشت ،ا یا یاشت .تػا سادسخشت یدایص تيوا صا یسثع یهتاو ید داه شثا فيصت تلاح شت هیشتىلا یهتاو یا سد اس یؼيعاغهشتىلا جاها ؾتاو ات تػا مصلا یدشف ظيحه ید یا ىوات .داد ماجا براج ذؿاپ هیشتىلا ؽس سد غيعاغهشتىلا جاها ؾتاو یاشت یدذعته یا ظيحه سضح ید یا یه و تػا ذؿ ئاسا هیشتىلا ىات ىآ [ یظاشگلا یلو تفايس د سد اس ا 0 ذیذپ ] [ یتخاؿ 9 تػد ] جاها ؾتاو،لامه يیا سد .دشو یذت ذیذپ دشىیس شت یتثه یؼيعاغهشتىلا یاشت اس یتخاؿ ید غيت یغيحه تاشثا یػسشت عذو تلاح شت هیشتىلا یه ساو ت یغخشيغ .نیشت ػ غپ یگظی هيتپا یا تلاح یهتاو غيت صا یجشخ یا ید ی هیشتىلا اس یه یػسشت .نيیاو 2 یگدنکارپ سیرتام ؾخت يیا سد اذتتا سد سد غيعاغهشتىلا ىاذيه ؾتاو سضح هی غيت ی ید هیشتىلا هاخض ت ت 2L ةیشض تؼىؿ           2 2 r i n i i                  سشه اس یه نيو لىؿ( 0 ) . لىؿ 0 : غیشتاه سد ذؿ فیشعت یجشخ یدشف یاشگلوع ؾیاو ( یگذواشپ 9 0 .) ذیذپ ؽس سد ؾتاو حشع دسا اويمتؼه داه ،یتخاؿ یو دؿ یىیشتىلا ؾثغل یلاگچ ظػت داه سضح ف یىیشتىلا یشیزپرف ، صشهاشو ظتاس و اس گيشو یه اضسا ذو ، یه فيصت .دؿ يیا سد ؾثغل سادشت ؽس یگظی و ف ىايت اس داه یفلاتا یا یه ،ذو ت لداعه یه فاضا داه یذوتخاػ یىيػلاو ی دؿ . ات غتاس صا دافتػا ات یىیشتىلا ؾثغل سادشت ييت ی ىاذيه لداعه ات لؼواه تلاداعه ضي یصت یا ی ىاذيه یاشگلوع ةيوشت داه یذوتخاػ سؼات یصت یاشگلوع يیا ةؼح شت یؼيعاغهشتىلا ت يیشگ یه تػد .ذیآ يضل عاػا شت ،غپػ تفا ی ضيخ یصت یاشگلوع ييت یشگاجتاج ظتاس ،فلاتا شظ سد داه سضح مذع سد یشگاجتاج ظتاس ذاو یه تفشگ فلؤه عاػا يیاشت .ذؿ شگلوع تثثه ی ت اف كلخ یاشگلوع ةؼحشت یسادشت ليؼاتپ تسص شیص فیشعت یه دؿ ( 9 0 )     0 0 ˆ ˆ , +H.C. 4 i x c i t R A x t d a e e c                 و ىآ سد  شت یدشف یاس و تػا غيت صا یحغػ یه دشف ىآ ذیآ 1,3  غيت فشع د یحا ت ساؿا ید لىؿ( دساد هیشتىلا 0 یـتات یاذه و ییاجآ صا .) یه ذواشپ هیشتىلا ید عيت سضح سد ؿ ذ ، يیا یه اس یگذواشپ ت یگذواشپ غیشتاه ةؼحشت ىات تسص [ دشو ىايت شیص ۱ ] ( 9 9 )                     1 1

انجمن اپتیک و فوتونیک ایران•Feb 15, 2014•0 citations

Scattering of Squeezed Light by a Dielectric Slab

Ghafoor Pooseh

We develop a quantum theory for the scattering of squeezed coherent light by a dissipative dielectric slab. Using the Green-function quantization approach, we derive the transformation of the field quadratures and show how dispersion, absorption, and multiple reflections distort the incident squeezing. We find that the slab can selectively attenuate or amplify quadrature noise depending on the slab parameters and provide expressions for the output power spectra.

quant-pharXiv:2601.22798•Feb 2, 2026•0 citations

Thermal nonlinear coherent states on a flat space and on a sphere

H. Bagheri, Ali Mahdifar

In this paper, we first define thermal nonlinear coherent states on a sphere and show that these states are essentially two-mode squeezed nonlinear coherent states of the sphere at zero temperature. Then we consider quantum statistical properties of the thermal sphere nonlinear coherent states. In particular, we investigate temperature effects on transition of the constructed states from nonclassical states to classical ones. By using the Mandel parameter, we obtain a transition temperature and show that this transition temperature increases by increasing the curvature of the physical space. It turns out that, increasing curvature of the space provides nonlinear coherent states with nonclassical properties in higher temperature ranges.

Journal of Mathematical Physics•May 1, 2013•2 citations
In this paper, the thermal effects of the dispersive and absorbing dielectric slab on non-classical properties of the incident states are investigated. Accordingly, we consider the incident rightward and leftward states on the dielectric slab as a nonlinear coherent state on a sphere and the quantum vacuum state, respectively. Then, by modeling the electric permittivity function of the dielectric slab with the Lorentz model, the quadrature squeezing and the Mandel parameter are calculated.
In this paper, we examine the modification of specific nonclassical properties of the nonlinear coherent state on sphere upon perpendicular propagation through an absorptive and dispersive dielectric slab at finite temperature. For this purpose, by describing the dielectric dispersion of the slab by Lorentz model, the quadrature squeezing and the Mandel parameter are evaluated for the transmitted state. A generalization of single-mode nonlinear coherent state to the continuum-mode is considered. The degree of second-order coherence is instead calculated for a continuum nonlinear coherent state on sphere, and the quantum noise effects produced by transmission through the slab on the antibunching feature are examined. We find that near the medium resonance the detrimental effect of the loss and thermal fluctuations of the slab are not compensate with increasing the physical space curvature of the incident state.
In order to investigate the effect of a medium with dissipation and dispersion and also the curvature of the physical space on the properties of the incident quantum states, we use the quantization of electromagnetic field based on phenomenological approach to obtain input-output relations between radiations on both sides of dielectric slab. By using these relations the fidelity, the Wigner function, and also the quantum correlation of the outgoing state through dielectric slab are obtained for a situation in which the rightward incident state is a nonlinear coherent state on a sphere and the leftward incident state is a vacuum state. Here, the incident states are considered monochromatic and the modeling of the medium is given by the Lorentz' model. Accordingly, we study nonclassical properties of the output states such as the quantum entanglement. It will be observed that the nonclassical properties of the outgoing states depend strongly on the optical property of the medium and also on the curvature of the physical state.
We calculate the effects of perpendicular propagation through a dispersive and absorbing dielectric slab at arbitrary temperatures on specific nonclassical properties of an incident light field. The transmitted signal is assumed to be measured by a detector that receives radiation only from the direction normal to the slab surfaces. Squeezing and nonclassical counting statistics of the transmitted light are evaluated for continuous-wave squeezed states incident on both sides of the slab. The degree of second-order coherence is instead evaluated for an N-photon incident pulse, and the effects of transmission through the slab on its antibunching are calculated.
In this paper, we investigate the medium effects of a dispersive and absorbing dielectric mater on the quantum optical properties of incident input states at zero temperature .For this purpose, we calculate the quadrature squeezing, the Mandel parameter and the second-order quantum correlation of output states, by using the phenomenological approach and modeling the dielectric slab by the Lorentz model, for a situation that incident states on the right and left side of the dielectric slab are nonlinear coherent states on a sphere and quantum vacuum state, respectively. Keyword : Quantization of electromagnetic waves, Nonlinear coherent states on a sphere, quadrature squeezing, Mandel parameter, second-order correlation. یگژیو تلاح یموتناوک کیتپا یاه کی روضح رد هرک حطس یطخریغ سودمه یاه هدام ید ی کیرتکلا ىاتشلوع ىاؼحا ، یذه یلع شف یذػا يلس هیضيف شگ ،ملع ذىـاد ،دشوشؿ اگـاد 8 ات 01 يوت 0۱49 صاشيؿ یتعص اگـاد ، 941 1 همدقم داه هی سد س ساـتا ید ی لئاؼه لوج صا هیشتىلا ىاذيه ت و تػا یهتاو هيهایدشتىلا یا داه هی سضح سد یؼيعاغهشتىلا ؾثغل ی طتشه شیزپ یشظ سد چشگا .تػا هيهایدشتىلا ی یه هيػلاو ىات ىاذيه تذؿ یشظ سد ظػته یا س یهتاو ی اس دج یهتاو یساهآ لئاؼه صا یخشت اها ،دسآ تػذت یو و ذساد ىآ ىات تػذت یىيػلاو تاثػاحه ات اس ا داه هی سضح علا سد .دسآ ؾثغل ی شييغت ثعات شیزپ یه یهتاو ءلاخ ىاذيه ضيخ تفا فاخ و دؿ لتال ةول ییاجتاج شویصاو شثا سد فاخ يیا صا یضعت صاذا .ذتؼ یشيگ ید هیشتىلا عتات ظػت لاوعه ا یىیشتىلا یدسزگ ظلتخه ( )   یه فيصت اجآ صا .ذؿ كثع شت ،تػا فلاتا شگايت عتات يیا یهه توؼل و يضل تح سع ت ،فلاتا ـضيخ تفا ی دج ضي ف ن اهاػ سد ،س يیا صا .دساد لهاؿ یىيتپا یا ید هیشتىلا تلاح یىيتپا متاو شثا یػسشت ،ا یا یاشت .تػا سادسخشت یدایص تيوا صا یسثع یهتاو ید داه شثا فيصت تلاح شت هیشتىلا یهتاو یا سد اس یؼيعاغهشتىلا جاها ؾتاو ات تػا مصلا یدشف ظيحه ید یا ىوات .داد ماجا براج ذؿاپ هیشتىلا ؽس سد غيعاغهشتىلا جاها ؾتاو یاشت یدذعته یا ظيحه سضح ید یا یه و تػا ذؿ ئاسا هیشتىلا ىات ىآ [ یظاشگلا یلو تفايس د سد اس ا 0 ذیذپ ] [ یتخاؿ 9 تػد ] جاها ؾتاو،لامه يیا سد .دشو یذت ذیذپ دشىیس شت یتثه یؼيعاغهشتىلا یاشت اس یتخاؿ ید غيت یغيحه تاشثا یػسشت عذو تلاح شت هیشتىلا یه ساو ت یغخشيغ .نیشت ػ غپ یگظی هيتپا یا تلاح یهتاو غيت صا یجشخ یا ید ی هیشتىلا اس یه یػسشت .نيیاو 2 یگدنکارپ سیرتام ؾخت يیا سد اذتتا سد سد غيعاغهشتىلا ىاذيه ؾتاو سضح هی غيت ی ید هیشتىلا هاخض ت ت 2L ةیشض تؼىؿ           2 2 r i n i i                  سشه اس یه نيو لىؿ( 0 ) . لىؿ 0 : غیشتاه سد ذؿ فیشعت یجشخ یدشف یاشگلوع ؾیاو ( یگذواشپ 9 0 .) ذیذپ ؽس سد ؾتاو حشع دسا اويمتؼه داه ،یتخاؿ یو دؿ یىیشتىلا ؾثغل یلاگچ ظػت داه سضح ف یىیشتىلا یشیزپرف ، صشهاشو ظتاس و اس گيشو یه اضسا ذو ، یه فيصت .دؿ يیا سد ؾثغل سادشت ؽس یگظی و ف ىايت اس داه یفلاتا یا یه ،ذو ت لداعه یه فاضا داه یذوتخاػ یىيػلاو ی دؿ . ات غتاس صا دافتػا ات یىیشتىلا ؾثغل سادشت ييت ی ىاذيه لداعه ات لؼواه تلاداعه ضي یصت یا ی ىاذيه یاشگلوع ةيوشت داه یذوتخاػ سؼات یصت یاشگلوع يیا ةؼح شت یؼيعاغهشتىلا ت يیشگ یه تػد .ذیآ يضل عاػا شت ،غپػ تفا ی ضيخ یصت یاشگلوع ييت یشگاجتاج ظتاس ،فلاتا شظ سد داه سضح مذع سد یشگاجتاج ظتاس ذاو یه تفشگ فلؤه عاػا يیاشت .ذؿ شگلوع تثثه ی ت اف كلخ یاشگلوع ةؼحشت یسادشت ليؼاتپ تسص شیص فیشعت یه دؿ ( 9 0 )     0 0 ˆ ˆ , +H.C. 4 i x c i t R A x t d a e e c                 و ىآ سد  شت یدشف یاس و تػا غيت صا یحغػ یه دشف ىآ ذیآ 1,3  غيت فشع د یحا ت ساؿا ید لىؿ( دساد هیشتىلا 0 یـتات یاذه و ییاجآ صا .) یه ذواشپ هیشتىلا ید عيت سضح سد ؿ ذ ، يیا یه اس یگذواشپ ت یگذواشپ غیشتاه ةؼحشت ىات تسص [ دشو ىايت شیص ۱ ] ( 9 9 )                     1 1
In this paper, we first define thermal nonlinear coherent states on a sphere and show that these states are essentially two-mode squeezed nonlinear coherent states of the sphere at zero temperature. Then we consider quantum statistical properties of the thermal sphere nonlinear coherent states. In particular, we investigate temperature effects on transition of the constructed states from nonclassical states to classical ones. By using the Mandel parameter, we obtain a transition temperature and show that this transition temperature increases by increasing the curvature of the physical space. It turns out that, increasing curvature of the space provides nonlinear coherent states with nonclassical properties in higher temperature ranges.