Results 41 to 50 of about 3,179,942 (294)

Position Measurement for a Relativistic Particle: Restricted-Path-Integral Analysis [PDF]

, 1995
Measurements of the position of a relativistic particle is considered in the framework of the Restricted-Path-Integral (RPI) approach. The amplitude describing such a measurement is shown to be exponentially small outside the light cone of the space-time
Aharonov, Aharonov, Aharonov, Barchielli, Caves, Caves, Diosi, Diosi, Feynman, Finkelstein, Finkelstein, Hellwig, Horst von Borzeszkowski, Khalili, Malin, Mensky, Mensky, Mensky, Michael B. Mensky, Mosley, Squires, Stueckelberg, Stueckelberg, von Borzeszkowski   +23 more
core   +3 more sources

Velocity selector with a microwave magnetic dipole transition

, 2014
We proposed a method based on microwave magnetic dipole transitions to prepare samples of atoms with well defined position and velocity. Each microwave pulse corresponds to a position measurement for the atoms and two pulses separated by a given delay ...
Castaños, L. O., Gomez, E.
core   +1 more source

Proof of the Standard Quantum Limit for Monitoring Free-Mass Position

, 2010
The measurement result of the moved distance for a free mass m during the time t between two position measurements cannot be predicted with uncertainty smaller than sqrt{hbar t/2m}.
J. von Neumann, Seiji Kosugi, V. B. Braginsky, V. B. Braginsky   +3 more
core   +1 more source

Positive motivic measures are counting measures [PDF]

Algebra & Number Theory, 2010
5 ...
Ellenberg, Jordan, Larsen, Michael
openaire   +3 more sources

Effect of Sensor Size, Number and Position under the Foot to Measure the Center of Pressure (CoP) Displacement and Total Center of Pressure (CoPT) Using an Anatomical Foot Model

Sensors, 2023
Ambulatory instrumented insoles are widely used in real-time monitoring of the plantar pressure in order to calculate balance indicators such as Center of Pressure (CoP) or Pressure Maps.
Hussein Abou Ghaida, Luiz Poffo, Ronan Le Page, Jean-Marc Goujon   +3 more
doaj   +1 more source

On the Quantum Mechanical Description of the Interaction between Particle and Detector

Physics, 2021
Quantum measurements of physical quantities are often described as ideal measurements. However, only a few measurements fulfil the conditions of ideal measurements. The aim of the present work is to describe real position measurements with detectors that
Klaus Wick
doaj   +1 more source

Operational Time of Arrival in Quantum Phase Space [PDF]

, 1999
An operational time of arrival is introduced using a realistic position and momentum measurement scheme. The phase space measurement involves the dynamics of a quantum particle probed by a measuring device.
Kochanski, Piotr, Wodkiewicz, Krzysztof
core   +2 more sources

Families of Sets of Positive Measure [PDF]

Transactions of the American Mathematical Society, 1992
We present a combinatorial description of those families P \mathcal {P} of sets, for which there is a finite measure μ \mu such that inf { μ ( P ) : P ∈ P } > 0 \inf \{ \mu (P):P \in ...
openaire   +1 more source

Simulating Positive-Operator-Valued Measures with Projective Measurements [PDF]

Physical Review Letters, 2017
Standard projective measurements represent a subset of all possible measurements in quantum physics, defined by positive-operator-valued measures. We study what quantum measurements are projective simulable, that is, can be simulated by using projective measurements and classical randomness.
Michał Oszmaniec, Leonardo Guerini, Peter Wittek, Antonio Acín   +3 more
openaire   +4 more sources

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source