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Demonstration of Design Verification Model of Rubidium Frequency Standard

Autor: Ghosal, Bikash, Mandal, Sarathi, Nandanwar, Satish, Raghuwanshi, S. S., Singh, Savita, Bahl, R. K., Banik, A., Dasgupta, K. S., Saxena, G. M.

In this paper we report the development of the design verification model (DVM) of Rb atomic frequency standard. The Rb atomic frequency standard or clock has two distinct parts. One is the Physics Package where the hyperfine transitions produce the c

Externí odkaz: http://arxiv.org/abs/1109.0277

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Frequency Stability of Atomic Frequency Standards beyond Quantum Projection Noise

Autor: Saxena, G. M.

In this paper we describe that the optically pumped frequency standards can have frequency stability beyond the quantum noise limit by detecting the Ramsey resonance through the squeezed light. In this paper we report that instead of considering the

Externí odkaz: http://arxiv.org/abs/1104.1301

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A New Rb Lamp Exciter Circuit for Rb atomic clocks and Studies on Transition from Ring to Red mode

Autor: Singh, Savita, Ghosal, Bikash, Saxena, G M

In this paper we describe the development of novel RF exciter circuit for electrode less Rb lamp. The lamp exciter circuit is a RF oscillator with a a new configuration operating at 60 to 65 MHz frequency with 3 to 4 watt power. The Rb lamp is used i

Externí odkaz: http://arxiv.org/abs/1011.2355

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A Generalized Approach to Determination of Magnetic Shielding Factor for Physics Package of Rb Atomic Clock

Autor: Raghuwanshi, S. S., Saxena, G. M.

In this paper we report generalized approach to calculate magnetic shielding factor (MSF) of multi-layer mu metal concentric cylindrical shields for arbitrary length to radius ratios and different values of magnetic permeability. We report in this pa

Externí odkaz: http://arxiv.org/abs/0910.4031

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Noisy quadrature of squeezed light and laser cooling

Autor: Saxena, G. M., Agarwal, A.

Publikováno v: Optics communications,267,124-127,2006

The laser cooling of atoms is a result of the combined effect of doppler shift, light shift and polarization gradient. These are basically undesirable phenomena. However, they combine gainfully in realizing laser cooling and trapping of the atoms. In

Externí odkaz: http://arxiv.org/abs/0807.0114

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Inverse operator representations of quantum phase

Autor: Saxena, G. M.

We define quantum phase in terms of inverses of annihilation and creation operators. We show that like Susskind - Glogower phase operators, the measured phase operators and the unitary phase operators can be defined in terms of the inverse operators.

Externí odkaz: http://arxiv.org/abs/0803.2094

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