![]() We point out that a cold dark matter condensate made of gauge bosons from an extra hidden U(1) sector - dubbed hidden photons - can create a small, oscillating electric density current. We estimate the sensitivity of this setup for hidden-photon cold dark matter and we find it could cover a sizable, so far unexplored parameter space.Īrias, Paola Arza, Ariel Gamboa, Jorge Mendez, Fernando Doebrich, Babette ![]() ![]() Thus, they could also be searched for in the recently proposed LC-circuit setup conceived for axion cold dark matter search by Sikivie, Sullivan and Tanner. We point out that a cold dark matter condensate made of gauge bosons from an extra hidden U(1) sector - dubbed hidden- photons - can create a small, oscillating electric density current. We estimate the sensitivity of this setup for hidden-photon cold dark matter and we find it could cover a sizable, so far unexplored parameter space.Įxtracting Hidden-Photon Dark Matter From an LC-CircuitĪrias, Paola Döbrich, Babette Gamboa, Jorge Méndez, Fernando We point out that a cold dark matter condensate made of gauge bosons from an extra hidden U(1) sector - dubbed hidden-photons - can create a small, oscillating electric density current. Conditions for improved sensitivity and quantum limited readout of electrical signals with such an “optical loud speaker†are outlined.Įxtracting hidden-photon dark matter from an LC-circuitĪrias, Paola Arza, Ariel Gamboa, Jorge Mendez, Fernando coupled to the LC and at the same time interacting with light via an optomechanical force is shown to provide strong electromechanical coupling. An experimentally feasible system with the oscillator capacitively. Our approach uses a nanomechanical oscillator as a transducer between optical and electronic excitations. We explore a method for laser cooling and optical detection of excitations in a room temperature LC electrical circuit. Sørensen, Anders Søndberg Marcus, Charles Masamed Laser cooling and optical detection of excitations in a LC electrical circuit This paper presents a new method for generating quadrature signals in integrated circuits using only inductors and capacitors. Today quadrature signals for IQ demodulation are provided through RC polyphase networks, quadrature oscillators or double frequency VCOs. LC Quadrature Generation in Integrated Circuits Generally, the damping condition of the step response of the L-C filter circuit is induced, and the discussion is given ![]() The ideal cascade damping condition and the parallel one can be obtained easily. Due to the influence of the second-order link, damped oscillation will occur with proper condition while the circuit state is changed. For the ripple demand of high-power load, the L-C filter with invert 'L' type has been used universally. Rectifier circuit is the most popular converter. Xu Weihua Chen Yonghao Wu Junshuan Kuang Guangli International Nuclear Information System (INIS) General oscillation damping analysis of the L-C filter circuit in the high-power rectifying power supply
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