Relevant bibliographies by topics / Squeezed vacuum state

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Squeezed vacuum state'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

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Journal articles on the topic "Squeezed vacuum state"

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Alemayehu, Getahun. "Squeezing and Statistical properties of Single mode Displaced Squeezed Vacuum State." J. of Physical and Chemical Sciences 7, no. 3 (2020): 02. https://doi.org/10.5281/zenodo.3751254.

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In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3.
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Sh. Iskhakov, T., A. M. Pérez, K. Yu. Spasibko, M. V. Chekhova, and G. Leuchs. "Superbunched bright squeezed vacuum state." Optics Letters 37, no. 11 (2012): 1919. http://dx.doi.org/10.1364/ol.37.001919.

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Yuan, Hong-Chun, and Xue-Xiang Xu. "Squeezed vacuum state in lossy channel as a squeezed thermal state." Modern Physics Letters B 29, no. 33 (2015): 1550219. http://dx.doi.org/10.1142/s021798491550219x.

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In this paper, we alternatively study the evolution of squeezed vacuum state (SVS) in lossy channel by virtue of the phase space method. By using the formula of Wigner function (WF) in coherent representation and [Formula: see text] representation of quantum density operator, the WF formula in lossy channel is derived. After obtaining the analytical expressions of the WFs of the lossy SVS and the squeezed thermal state (STS), we further prove the fact that the lossy SVS is equivalent to a kind of STS. Our result is useful in dealing with the light field transmission problems in the presence of losses.
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Gao, Yinghao, Jinxia Feng, Yuanji Li, and Kuanshou Zhang. "Generation and Measurement of Squeezed Vacuum States at Audio-Band Frequencies." Applied Sciences 9, no. 7 (2019): 1272. http://dx.doi.org/10.3390/app9071272.

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Squeezed vacuum states at audio-band frequencies are important quantum resources for practical applications. We demonstrated the generation of squeezed vacuum states at the audio-band frequencies from a subthreshold optical parametric oscillator with a periodically poled KTiOPO4 crystal pumped by a homemade continuous wave single-frequency dual-wavelength laser. To detect squeezed vacuum states at audio-band frequencies, the influences of the local oscillator (LO) power, the common mode rejection ratio (CMRR) of balanced homodyne detectors, and the phase jitter between the LO and squeezed vacuum field on the measurement of squeezed vacuum states at audio-band frequencies were considered. By optimizing the LO power, improving the CMRR of photodetectors to 67 dB based on the design of differential fine-tuning circuit and adjustable bias voltage, and reducing the phase jitter between the LO and squeezed vacuum field to 1.7° with the help of the coherent locking technique, 6.1 ± 0.3 dB squeezed vacuum states at audio frequencies from 5 kHz to 20 kHz were generated. A 3.0 ± 0.3 dB phase squeezed vacuum state was obtained at the audio frequency of 3.5 kHz.
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Abebe, Tamirat, Demissie Jobir, Chimdessa Gashu, and Ebisa Mosisa. "Interaction of Two-Level Atom with Squeezed Vacuum Reservoir." Advances in Mathematical Physics 2021 (January 29, 2021): 1–7. http://dx.doi.org/10.1155/2021/6696253.

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In this paper, the quantum properties of a two-level atom interaction with squeezed vacuum reservoir is throughly analyzed. With the aid of the interaction Hamiltonian and the master equation, we obtain the time evolution of the expectation values of the atomic operators. Employing the steady-state solution of these equations, we calculate the power spectrum and the second-order correlation function for the interaction of two-level atom with squeezed vacuum reservoir. It is found that the half width of the power spectrum of the light increases with the squeeze parameter, r . Furthermore, in the absence of decay constant and interaction time, it enhances the probability for the atom to be in the upper level.
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VENKATARATNAM, K. K., and P. K. SURESH. "DENSITY FLUCTUATIONS IN THE OSCILLATORY PHASE OF A NONCLASSICAL INFLATON IN THE FRW UNIVERSE." International Journal of Modern Physics D 17, no. 11 (2008): 1991–2005. http://dx.doi.org/10.1142/s0218271808013662.

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The use of the coherent and squeezed state formalisms of quantum optics for a minimally coupled nonclassical inflaton in the FRW metric is studied, in the semiclassical theory of gravity. The leading order solutions to the semiclassical Einstein equations in the coherent, squeezed and squeezed vacuum states are obtained perturbatively and exhibit power law expansion behavior. The validity of the semiclassical theory is examined in the squeezed vacuum state in the oscillatory phase of the inflaton. The semiclassical theory in the oscillatory phase of the nonclassical inflaton holds only if the associated squeezing parameter is much smaller than unity. Quantum fluctuations of the inflaton are also examined in the coherent and squeezed state formalisms.
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SURESH, P. K. "NONCLASSICAL STATE REPRESENTATION OF INFLATON AND POWER-LAW EXPANSION IN FRW UNIVERSE." Modern Physics Letters A 16, no. 38 (2001): 2431–38. http://dx.doi.org/10.1142/s0217732301005874.

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We have examined a homogeneous massive scalar field minimally coupled to the spatially flat Friedmann–Robertson–Walker metric, in squeezed and coherent state formalisms, in semiclassical theory of gravity. In the oscillatory phase of inflaton, the approximate leading solution to the semiclassical Einstein equation has the same power-law expansion as that of the classical Einstein equation for both coherent and squeezed state formalisms. Quantum fluctuations of the inflaton in coherent and squeezed vacuum states are studied, by using dispersion relations. The uncertainty relation for coherent state does not depend on the coherent state parameter while the uncertainty relation for squeezed vacuum state depends on the associated squeezing parameter and squeezing angle.
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SHARABY, Y. A., S. S. HASSAN, and S. M. A. MAIZE. "SQUEEZED VACUUM AND TRANSVERSE FIELD EFFECTS IN A THREE-LEVEL BISTABLE MODEL." International Journal of Modern Physics B 20, no. 11n13 (2006): 1629–39. http://dx.doi.org/10.1142/s0217979206034169.

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Optical bistability for three-level V-type atomic medium in ring cavity is examined in the presence of squeezed vacuum field within and without plane wave approximations. Squeezed Vacuum parameters affects the steady state behavior of the system. Gaussian field feature causes a significant change in the steady state behavior.
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Mitra, Saibal, and Sourangshu Mukhopadhyay. "Analytical investigation on interactions among squeezed vacuum and coherent state, coherent vacuum and squeezed state, and among phase squeezed and amplitude squeezed states of light." Optik 125, no. 16 (2014): 4497–500. http://dx.doi.org/10.1016/j.ijleo.2014.03.013.

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Karimi, Amir. "Superposition and entanglement of two-mode squeezed vacuum states." International Journal of Quantum Information 16, no. 01 (2018): 1850003. http://dx.doi.org/10.1142/s021974991850003x.

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In this paper, by using the parity operator as well as the two-mode squeezing operator, we define new operators which by the action of them on the vacuum state of the two-mode radiation field, superposition of two two-mode squeezed vacuum states and entangled two-mode squeezed vacuum states are generated.
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Dissertations / Theses on the topic "Squeezed vacuum state"

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Lemieux, Samuel. "Tailoring the Modal Structure of Bright Squeezed Vacuum States of Light via Selective Amplification." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34920.

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The bright squeezed vacuum state of light is a macroscopic nonclassical state found at the output of a strongly pumped unseeded travelling-wave optical parametric amplifier. It has been applied to quantum imaging, quantum communication, and phase supersensitivity, to name a few. Bright squeezed states are in general highly multimode, while most applications require a single mode. We separated two nonlinear crystals in the direction of propagation of the pump in order to narrow the angular spectrum down to a nearly-single angular mode. We observed noise reduction in the photon number difference between the two down-converted channels, which constitutes of proof of nonclassicality. By introducing a dispersive medium between the two nonlinear crystals, we were able to tailor the frequency spectrum of bright squeezed vacuum and to dramatically reduce the number of frequency modes down to 1.82 ± 0.02, bringing us closer to truly single-mode bright squeezed vacuum.
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Otterpohl, Alexander [Verfasser], Christoph [Akademischer Betreuer] Marquardt, Christoph [Gutachter] Marquardt, and Zanthier Joachim [Gutachter] von. "Squeezed vacuum states of light from a crystalline whispering gallery mode resonator / Alexander Otterpohl ; Gutachter: Christoph Marquardt, Joachim von Zanthier ; Betreuer: Christoph Marquardt." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2020. http://d-nb.info/1223175278/34.

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Book chapters on the topic "Squeezed vacuum state"

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Schiller, S., S. F. Pereira, G. Breitenbach, T. Müller, A. G. White, and J. Mlynek. "Optical Tomography of a Highly Squeezed, Continuous-Wave Vacuum-State." In Coherence and Quantum Optics VII. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9742-8_111.

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Park, J. Y., E. S. Kim, and Ik Min Park. "Development of Al-15%Si Hypereutectic Alloy Automotive Part by Local Squeeze and Vacuum Diecasting." In Solid State Phenomena. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908451-26-4.110.

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Conference papers on the topic "Squeezed vacuum state"

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Deng, Qiqi, Wenqi Li, Xueshi Guo, and Xiaoying Li. "Frequency tuning of a squeezed vacuum state using interferometric enhanced Bragg diffraction effect." In Quantum and Nonlinear Optics XI, edited by Chunhua Dong, Qiongyi He, and Dai-Sik Kim. SPIE, 2024. http://dx.doi.org/10.1117/12.3035588.

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Tripier-Mondancin, Niels, Ganaël Roeland, Yann Bouchereau, et al. "Engineering and certification of multimode non Gaussian states of light." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qth4a.2.

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We use double homodyne detection to sample the Q-Husimi function of a photon-subtracted mutlimode squeezed vacuum state. Thereafter, we perform a fidelity estimation protocol to certify the Wigner negativity and stellar rank of the generated state.
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Chen, Yi-Ru, Hsien-Yi Hsieh, Jingyu Ning, et al. "Experimental reconstruction of the “push-and-pull” associated with damping and diffusion Wigner’s currents in quantum phase space." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jw2a.152.

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We experimentally reconstruct Wigner’s current of quantum phase space dynamics for the first time, revealing the “push-and-pull” associated with damping and diffusion due to the environmental coupling of a squeezed vacuum state.
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Chen, Yi-Ru, Hsien-Yi Hsieh, Jingyu Ning, et al. "Experimental realization of optical cat states by photon-addition." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fm4k.4.

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We added (heralded) single photons to squeezed vacuum states creating approximate optical ‘cat states’ at rates exceeding 2.3 × 105 per second; at least one order of magnitude higher than all previously reported realizations.
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Jabir, M. V., Riley Dawkins, J. Sabines-Chesterking, et al. "Quantum enhanced precision metrology for quantum networks." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qth4c.5.

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We construct a source generating two-mode squeezed vacuum states for precise transmission estimation. Experimentally, we demonstrate that measurements using TMSV states offer greater quantum advantage compared to coherent states.
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Seglem, Eric, and Reeta Vyas. "Photon Number and Wait-time Distributions for Superposed Light States." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jw4a.31.

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Photon-number and wait-time distributions are studied for superposed coherent states (SCS), and superposed squeezed-vacuum states (SSVS). The odd-cat (even-cat) states always show antibunching (bunching), generalized SCS show bunching and antibunching, and SSVS always show bunching.
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Shi, Xihang, Ron Ruimy, Amnon Balanov, and Ido Kaminer. "Electron-Heralded Quantum X-ray Source." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fm4b.5.

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We present a concept for creating quantum X-ray radiation heralded by free electrons, showing conditions for squeezed vacuum and Schrodinger cat states of X-rays, created by post-selected pre-bunched electrons.
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Song, Hongbin, Heyu Huang, Hao Liu, Ai Zhou, Guofeng Zhang, and Hidehiro Yonezawa. "Quantum Entanglement Based on Two-Photon Joint Subtraction from Two-Mode Squeezed Vacuum States." In 2024 IEEE Opto-Electronics and Communications Conference (OECC). IEEE, 2024. https://doi.org/10.1109/oecc54135.2024.10975325.

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Rao, Sakshi, Preeti Sharma, and Bhaskar Kanseri. "Effect of Gaussian Schell Model Pulses on Squeezed State and Single Photon Subtracted Squeezed Vacuum State." In Frontiers in Optics. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jtu4a.42.

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This study investigates the effect of a partially temporally coherent pump on the nonclassical properties of squeezed vacuum and single-photon subtracted squeezed vacuum state, which could be useful for quantum communication, metrology, and sensing.
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Kimble, H. J. "Squeezed states of light." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.ma1.

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Squeezed states of the electromagnetic field are characterized by a reduction of fluctuations for one of two quadrature phase amplitudes below the level of fluctuations for the vacuum state. This reduction is a manifestly quantum or nonclassical feature which is of great interest in its own right but also potentially important for precision measurement with sensitivity beyond the shot-noise or vacuum-state limit. We describe three different experiments in which squeezed light has been generated in our laboratory involving parametric downconversion, intracavity frequency doubling, and optical bistability with two-state atoms. By employing the squeezed light produced by a subthreshold optical parametric oscillator, we have achieved improvements in sensitivity beyond the vacuum-state limit for the detection of both phase and amplitude changes of the electromagnetic field. An alternate route to sensitivity beyond the vacuum-state limit is through quantum nondemolition measurement, where we have suggested and are implementing a scheme involving parametric conversion and polarization mixing.
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