Zobrazeno 1 - 10
of 336
pro vyhledávání: '"Speake, C"'
Publikováno v:
Phys. Rev. D 105, 022007 (2022)
Spin-dependent fifth-forces are associated with particles beyond the standard model. In particular, light pseudo-scalar bosons mediate long-range forces, allowing mass to interact with spins. The search of these interactions can be performed by perio
Externí odkaz:
http://arxiv.org/abs/2011.07100
Publikováno v:
Physics Letters A 126994 2020
We describe designs for practical detectors of absolute rotation, which rely on the creation of magnetic fields by charged objects that are rotating with respect to an inertial frame. Our designs, motivated by an original suggestion by R.M. Brady, ut
Externí odkaz:
http://arxiv.org/abs/2012.01567
Autor:
Gettings, C., Speake, C. C.
Publikováno v:
Journal = Review of Scientific Instruments, Year = 2020, Volume = 91, Issue = 2 Month = Feb, Article-Number = 025108
We report on the design and characterisation of an air-bearing suspension that has been constructed to highlight the properties of torsion balances with fibres of zero length. A float is levitated on this suspension and its rotational and translation
Externí odkaz:
http://arxiv.org/abs/2002.03633
Autor:
Alesini, D., Braggio, C., Carugno, G., Crescini, N., D'Agostino, D., Di Gioacchino, D., Di Vora, R., Falferi, P., Gallo, S., Gambardella, U., Gatti, C., Iannone, G., Lamanna, G., Ligi, C., Lombardi, A., Mezzena, R., Ortolan, A., Pengo, R., Pompeo, N., Rettaroli, A., Ruoso, G., Silva, E., Speake, C. C., Taffarello, L., Tocci, S.
Publikováno v:
Phys. Rev. D 99, 101101 (2019)
To account for the dark matter content in our Universe, post-inflationary scenarios predict for the QCD axion a mass in the range $(10-10^3)\,\mu\mbox{eV}$. Searches with haloscope experiments in this mass range require the monitoring of resonant cav
Externí odkaz:
http://arxiv.org/abs/1903.06547
Autor:
Crescini, N., Alesini, D., Braggio, C., Carugno, G., Di Gioacchino, D., Gallo, C. S., Gambardella, U., Gatti, C., Iannone, G., Lamanna, G., Ligi, C., Lombardi, A., Ortolan, A., Pagano, S., Pengo, R., Ruoso, G., Speake, C. C., Taffarello, L.
Axions, originally proposed to solve the strong CP problem of quantum chromodynamics, emerge now as leading candidates of WISP dark matter. The rich phenomenology associated to the light and stable QCD axion can be described as an effective magnetic
Externí odkaz:
http://arxiv.org/abs/1806.00310
Autor:
Ruoso, G., Alesini, D., Braggio, C., Carugno, G., Crescini, N., Di Gioacchino, D., Falferi, P., Gallo, S., Gambardella, U., Gatti, C., Iannone, G., Lamanna, G., Ligi, C., Lombardi, A., Mezzena, R., Ortolan, A., Pengo, R., Speake, C. C.
The current status of the QUAX R\&D program is presented. QUAX is a feasibility study for a detection of axion as dark matter based on the coupling to the electrons. The relevant signal is a magnetization change of a magnetic material placed inside a
Externí odkaz:
http://arxiv.org/abs/1802.05552
Autor:
Cooper, S. J., Green, A. C., Collins, C., Hoyland, D., Speake, C. C., Freise, A., Mow-Lowry, C. M.
We present a compact, fibre-coupled interferometer with high sensitivity and a large working range. We propose to use this interferometer as a readout mechanism for future inertial sensors, removing a major limiting noise source, and in precision pos
Externí odkaz:
http://arxiv.org/abs/1710.05943
Autor:
Barbieri, R., Braggio, C., Carugno, G., Gallo, C. S., Lombardi, A., Ortolan, A., Pengo, R., Ruoso, G., Speake, C. C.
Publikováno v:
Physics of the Dark Universe 15 (2017) 135
We present a proposal to search for QCD axions with mass in the 200 $\mu$eV range, assuming that they make a dominant component of dark matter. Due to the axion-electron spin coupling, their effect is equivalent to the application of an oscillating r
Externí odkaz:
http://arxiv.org/abs/1606.02201
In force sensing experiments intended to measure non-Newtonian gravitational signals electrostatic patch potentials can give rise to spurious forces, torques, and noise. Undesired patch-induced interactions can lead to systematic effects which limit
Externí odkaz:
http://arxiv.org/abs/1304.4074
Autor:
Carbone, L., Aston, S. M., Cutler, R. M., Freise, A., Greenhalgh, J., Heefner, J., Hoyland, D., Lockerbie, N. A., Lodhia, D., Robertson, N. A., Speake, C. C., Strain, K. A., Vecchio, A.
Publikováno v:
Class. Quantum Grav. 29 (2012) 115005
We have developed, produced and characterised integrated sensors, actuators and the related read-out and drive electronics that will be used for the control of the Advanced LIGO suspensions. The overall system consists of the BOSEMs (displacement sen
Externí odkaz:
http://arxiv.org/abs/1205.5643