Constraints on the Velocity and Spin Dependent Exotic Interaction at the Micrometer Range

Abstract

The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.

Demonstration of diamond nuclear spin gyroscope

“…The advantage of this technique is that it directly provides information about the nuclear spin states without requiring precise knowledge of the electron spin transition frequencies, which are susceptible to environmental influences ( 16 , 18 , 20 ). The nuclear spin interferometric technique developed in this work may find application in solid-state frequency references ( 12 , 21 ) and in extending tests of fundamental interactions ( 2 , 22 ) at micro- and nanoscale ( 23 , 24 ) to those involving nuclear spins. With further improvements, it may also find use in practical devices such as miniature diamond gyroscopes for navigational applications.…”

Proposal for the search for new spin interactions at the micrometer scale using diamond quantum sensors

“…In symbolic form, f 4+5 = g e S g N S or f 4+5 = g e V g N V for scalar and vector coupling, respectively [33]. [23], Ding, 2020 [44] and Wu, 2021 [41]. The non-zero result from Rong, 2020 [1], is shown as black dots, and the sensitivity of that experiment is shown as a solid magenta line.…”

“…The black triangular points are the positions of new hypothetical bosons estimated by [1], and the magenta curve is the reported sensitivity of that experiment. The previous experimental constraints of V 4+5 are shown as the gray area, set by atomic magnetometers [23,41], cantilevers [44] and the torsion pendulum [43]. The stellar cooling limit [33] is derived with the experimental limit of g N S and the astrophysical axion bounds g e S < 1.3 × 10 −14 [8].…”

Recent results of laser spectroscopy experiments of pionic helium atoms at PSI

“…This can help set upper limits on constraints on the muon antineutrino mass by laboratory experiments [13]. Some upper limits may also be set on any exotic force [14][15][16][17][18] that involves the π − , as has been done in the case of antiprotonic helium (pHe + ≡ p + He 2+ + e − ) atoms [19][20][21][22][23][24][25][26][27][28][29][30]. Unlike the pHe + case, the atomic structure of π 4 He + contains no hyperfine structure that arises from the spin-spin interaction between the spin-0 π − and 4 He nucleus [31,32].…”