Results 1 to 10 of about 1,454,719 (294)

Time-of-Arrival States [PDF]

Physical Review A, 1998
Although one can show formally that a time-of-arrival operator cannot exist, one can modify the low momentum behaviour of the operator slightly so that it is self-adjoint.
A.S. Holevo, B. Reznik, C.R. Leavens, G. Muga, G.R. Allcock, I.S. Gradshteyn, J. Kijowski, J. Leon, J. Oppenheim, M.D. Srinivas, N. Grot, P. Busch, V. Delgado, V. Delgado, W. G. Unruh, Y. Aharonov, Y. Aharonov   +16 more
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Differentiability of the arrival time [PDF]

Communications on Pure and Applied Mathematics, 2015
For a monotonically advancing front, the arrival time is the time when the front reaches a given point. We show that it is twice differentiable everywhere with uniformly bounded second derivative.
Colding, Tobias Holck, Minicozzi II, William P.   +1 more
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Time-of-arrival in quantum mechanics [PDF]

Physical Review A, 1996
We study the problem of computing the probability for the time-of-arrival of a quantum particle at a given spatial position. We consider a solution to this problem based on the spectral decomposition of the particle's (Heisenberg) state into the ...
A. Ashtekar, B. Mielnik, C. Isham, C. Piron, C. Rovelli, C. Rovelli, Carlo Rovelli, D. Marolf, E. Gerjuoy, E. P. Wigner, F. T. Smith, G. R. Allcock, G. R. Allcock, G. R. Allcock, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. B. Hartle, J. J. Halliwell, J. J. Halliwell, J. Kijowski, J. S. Muga, N. Kumar, N. Yamada, N. Yamada, N. Yamada, N. Yamada, Norbert Grot, P. A. M. Dirac, R. Werner, R. Werner, R. Werner, Ranjeet S. Tate, V. I. Arnold, V. S. Olkhovsky   +34 more
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Time of Arrival from Bohmian Flow [PDF]

Journal of Physics A: Mathematical and General, 2002
We develop a new conception for the quantum mechanical arrival time distribution from the perspective of Bohmian mechanics. A detection probability for detectors sensitive to quite arbitrary spacetime domains is formulated.
Aharonov Y, Berndl K, Berndl K, Daumer M, Daumer M, Daumer M, Dürr D, Gebhard Grübl, Gleason A M, Goldstein S, Hardy L, Holland P R, Klaus Rheinberger, Kobayashi S, Sternberg S   +14 more
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Weak measurement of arrival time [PDF]

Physical Review A, 2002
The arrival time probability distribution is defined by analogy with the classical mechanics. The difficulty of requirement to have the values of non-commuting operators is circumvented using the concept of weak measurements.
A.D. Baute, A.D. Baute, A.D. Baute, A.D. Baute, A.J. Bracken, B. Kaulakys, C.M. Caves, E. Joos, G.J. Milburn, G.R. Allcock, I.L. Egusquiza, I.M. Duck, J. Kijowski, J. Leon, J. Ruseckas, J. Ruseckas, J. Ruseckas, J. Ruseckas, J. Ruseckas, J.G. Muga, J.G. Muga, J.G. Muga, K.-I. Aoki, M.J. Gagen, N. Grot, P. Kochański, V. Delgado, Y. Aharonov, Y. Aharonov, Y. Aharonov, Y. Aharonov, Y. Aharonov, Y. Aharonov, Y. Aharonov   +33 more
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Measurement of Time-of-Arrival in Quantum Mechanics [PDF]

Physical Review A, 1997
It is argued that the time-of-arrival cannot be precisely defined and measured in quantum mechanics. By constructing explicit toy models of a measurement, we show that for a free particle it cannot be measured more accurately then $\Delta t_A \sim 1/E_k$,
A. Peres, B. Reznik, G.R. Allcock, G.R. Allcock, H. Salecker, J. Leon, J. Oppenheim, J.G. Muga, N. Grot, S. Popescu, V. Delgado, W. G. Unruh, W. G. Unruh, Y. Aharonov   +13 more
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Times of arrival: Bohm beats Kijowski [PDF]

Journal of Physics A: Mathematical and General, 2005
We prove that the Bohmian arrival time of the 1D Schroedinger evolution violates the quadratic form structure on which Kijowski's axiomatic treatment of arrival times is based. Within Kijowski's framework, for a free right moving wave packet, the various
Berndl K, Bracken A J, Daumer M, G Grübl, Grübl G, Kreidl S, M Ruggenthaler, Muga J G, Ruggenthaler M, S Kreidl   +9 more
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Cooperative positioning using angle of arrival and time of arrival [PDF]

2014 Sensor Signal Processing for Defence (SSPD), 2014
Localization has been one of the most highly researched topics in wireless communications in the past decade. Localization of wireless nodes can be achieved using a variety of techniques, in which range measurement and angle measurement are most commonly
Kemp, AH, Khan, MW, Salman, N
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Times of arrival and gauge invariance [PDF]

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
We revisit the arguments underlying two well-known arrival-time distributions in quantum mechanics, viz., the Aharonov–Bohm–Kijowski (ABK) distribution, applicable for freely moving particles, and the quantum flux (QF) distribution. An inconsistency in the original axiomatic derivation of Kijowski’s result is pointed out, along with an inescapable ...
Siddhant Das, Markus Nöth
openaire   +2 more sources

Low-Complexity Wideband Interference Mitigation for UWB ToA Estimation

Sensors, 2023
Reliable time of arrival (ToA) estimation in dense multipath (DM) environments is a difficult task, especially when strong interference is present. The increasing number of multiple services in a shared spectrum comes with the demand for interference ...
Stefan Hechenberger, Stefan Tertinek, Holger Arthaber   +2 more
doaj   +1 more source