Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Piotr T. Grochowski"'
Publikováno v:
Quantum, Vol 8, p 1393 (2024)
We derive an analytical expression of a Wigner function that approximately describes the time evolution of the one-dimensional motion of a particle in a nonharmonic potential. Our method involves two exact frame transformations, accounting for both t
Externí odkaz:
https://doaj.org/article/79876bcf9d744a838f6644726a501107
Publikováno v:
Quantum, Vol 8, p 1338 (2024)
According to relativity, the reading of an ideal clock is interpreted as the elapsed proper time along its classical trajectory through spacetime. In contrast, quantum theory allows the association of many simultaneous trajectories with a single quan
Externí odkaz:
https://doaj.org/article/d2eb82263a0c49ec8a51989cc53b44c1
Publikováno v:
Physics Letters B, Vol 815, Iss , Pp 136160- (2021)
We investigate the Casimir-Polder physics within the simplified framework of the Unruh-DeWitt detector model mimicking the full matter-field interaction. This model is frequently used in the context of Relativistic Quantum Information theory and more
Externí odkaz:
https://doaj.org/article/9735a9e6b7bc4ed88a96df1a23a0601c
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023009 (2021)
A strongly interacting many-body system of bosons exhibiting the quantum carpet pattern is investigated exactly by using Gaudin solutions. We show that this highly coherent design usually present in noninteracting, single-body scenarios gets destroye
Externí odkaz:
https://doaj.org/article/cb6ec099819b4ef6b5fa7d7b2ed4c582
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023053 (2021)
Quantum time dilation occurs when a clock moves in a superposition of relativistic momentum wave packets. The lifetime of an excited hydrogenlike atom can be used as a clock, which we use to demonstrate how quantum time dilation manifests in a sponta
Externí odkaz:
https://doaj.org/article/6d1dfd45591e43629936ef18fea2cb30
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013119 (2020)
We report a formation of sharp, solitonlike structures in an experimentally accessible ultracold Fermi gas, as a quantum carpet solution is analyzed in a many-body system. The effect is perfectly coherent in a noninteracting gas, but in the presence
Externí odkaz:
https://doaj.org/article/1abaa04cd00a4c409b49f954d76a4938
Publikováno v:
International Journal of Modern Physics D.
Efficiencies of quantum information protocols can be affected by the noninertial motion of involved parties, e.g., in a gravitational field. Most of the previous studies focused on the effects of such a motion on a bipartite entanglement as a resourc
Publikováno v:
SciPost Physics, Vol 8, Iss 4, p 066 (2020)
We calculate frequencies of collective oscillations of two-component Fermi gas that is kept on the repulsive branch of its energy spectrum. Not only is a paramagnetic phase explored, but also a ferromagnetically separated one. Both in-, and out-of
Externí odkaz:
https://doaj.org/article/06d81f55448c4614939347e9d4a826ec
Publikováno v:
Physical Review A. 105
We analyze the dynamics of one-dimensional quantum gases with strongly attractive contact interactions. We specify a class of initial states for which attractive forces effectively act as strongly repulsive ones during the time evolution. Our finding
Publikováno v:
Physics Letters
Physics Letters B, Vol 815, Iss, Pp 136160-(2021)
Physics Letters B, Vol 815, Iss, Pp 136160-(2021)
We propose a new method to measure Casimir-Polder force in an optical cavity by means of atomic excitations. We utilize a framework in which Unruh-DeWitt Hamiltonian mimics the full matter-field interaction and find a connection between the excitatio