Zobrazeno 1 - 10
of 263
pro vyhledávání: '"Dubetsky, B."'
Autor:
Dubetsky, B.
Publikováno v:
Phys. Rev. A 108, 063308 (2023)
It is proposed to use rectangular Raman pulses for the technique of sequantial large momentum transfer. It is shown that the small parameters that make it possible to use this technology for precision atom interferometry can be 40--200 times smaller
Externí odkaz:
http://arxiv.org/abs/2305.06495
Autor:
Dubetsky, B.
It is shown that even in the case of a negligibly small change in the gradient of the gravitational field of the mass source in the axial direction, the dependence of this gradient in the radial direction leads to a systematic error in Newton gravita
Externí odkaz:
http://arxiv.org/abs/2112.13949
Autor:
Dubetsky, B.
A local positional system (LPS) is proposed, in which particles are launched at given velocities, and a sensor system measures the trajectory of particles in the platform frame. These measurements allow us to restore the position and orientation of t
Externí odkaz:
http://arxiv.org/abs/2108.00328
Autor:
Dubetsky, B.
Publikováno v:
Metrologia 58, 015004 (2021)
Atomic interferometry methods used to measure the Newtonian gravitational constant. To improve the accuracy, one should measure the phase of an atomic interferometer at extreme values of atomic vertical velocities and coordinates. Owing to symmetry,
Externí odkaz:
http://arxiv.org/abs/2004.01715
Autor:
Dubetsky, B.
An analytical expression for the gravitational field of a homogeneous cylinder is derived. The phase of the atom interferometer produced by the gravity field of the set of cylinders has been calculated. The optimal values of the initial positions and
Externí odkaz:
http://arxiv.org/abs/1907.03352
Autor:
Dubetsky, B.
A new approach to the theory of atoms' interaction with chirped Raman pulses is developed. When the pulses have sufficiently close effective wave lengths, which are smaller than the atomic cloud size, equations for the family of the matrix elements o
Externí odkaz:
http://arxiv.org/abs/1810.04218
Autor:
Dubetsky, B.
The A. Roura technique was modified to eliminate all terms in the atom interferometer phase, which are linear in the gravity-gradient tensor. The full elimination occurs if all effective wave vectors are slightly changed. The full elimination techniq
Externí odkaz:
http://arxiv.org/abs/1803.10818
Autor:
Dubetsky, B.
It is shown that using beam splitters with non-equal wave vectors results in a new recoil diagram which is qualitatively different from the well-known diagram associated with the Mach-Zehnder atom interferometer. We predict a new asymmetric Mach-Zehn
Externí odkaz:
http://arxiv.org/abs/1710.00020
Autor:
Dubetsky, B.
We compare expressions for the atom interferometer phase obtained using the path integral approach and the approach based on the density matrix equation in the Wigner representation. The power series of these expressions over the Planck constant, tru
Externí odkaz:
http://arxiv.org/abs/1701.07909
The influence of an external test mass on the phase of the signal of an atom interferometer is studied theoretically. Using traditional techniques in atom optics based on the density matrix equations in the Wigner representation, we are able to extra
Externí odkaz:
http://arxiv.org/abs/1601.00355