ar X iv : 0 70 7 . 22 15 v 1 [ qu an t - ph ] 1 5 Ju l 2 00 7 Detection of massive multi - particle beams by two - particle ionization
نویسنده
چکیده
Multi-photon absorption is a well-known phenomenon. With atom lasers a similar process could take place for massive particles, the ionization of an atom or molecule by the successive interaction with various particles. This process would lead to multi-particle detection events for incident multi-particle beams. We show that two-particle detections would introduce a correction (proportional to the fourth power of the wavefunction modulus) to the usual one-particle detection probability (only proportional to the second power).
منابع مشابه
ar X iv : 0 90 7 . 19 12 v 1 [ as tr o - ph . C O ] 1 0 Ju l 2 00 9 Dark Matter Astrophysics
These lectures are intended to provide a brief pedagogical review of dark matter for the newcomer to the subject. We begin with a discussion of the astrophysical evidence for dark matter. The standard weakly-interacting massive particle (WIMP) scenario—the motivation, particle models, and detection techniques—is then reviewed. We provide a brief sampling of some recent variations to the standar...
متن کاملar X iv : 0 70 7 . 15 28 v 1 [ qu an t - ph ] 1 0 Ju l 2 00 7 Simplified motional heating rate measurements of trapped ions
We have measured motional heating rates of trapped atomic ions, a factor that can influence multi-ion quantum logic gate fidelities. Two simplified techniques were developed for this purpose: one relies on Raman sideband detection implemented with a single laser source, while the second is even simpler and is based on time-resolved fluorescence detection during Doppler recooling. We applied the...
متن کاملar X iv : 0 70 5 . 19 96 v 2 [ qu an t - ph ] 1 5 M ay 2 00 7 Critique of “ Quantum Enigma : Physics encounters Consciousness ”
The central claim that understanding quantum mechanics requires a conscious observer, which is made made by B. Rosenblum and F. Kuttner in their book ”Quantum Enigma: Physics encounters consciousnes”, is shown to be based on various misunderstandings and distortions of the foundations of quantum mechanics.
متن کاملar X iv : 0 70 8 . 14 09 v 1 [ qu an t - ph ] 1 0 A ug 2 00 7 Diffusive spin transport ∗ Cord
Information to be stored and transported requires physical carriers. The quantum bit of information (qubit) can for instance be realised as the spin 1 2 degree of freedom of a massive particle like an electron or as the spin 1 polarisation of a massless photon. In this lecture, I first use irreducible representations of the rotation group to characterise the spin dynamics in a least redundant m...
متن کامل