Energy of Beta Particles - Ioniserende Stralen Practicum
... The β particles from a 90Sr source do not all have the same kinetic energy. The graph below shows the number of β particles as a function of their kinetic energy. The kinetic energy found in assignment 8 is the energy value that occurs most (Ek in the graph). From other experiments it is known that ...
... The β particles from a 90Sr source do not all have the same kinetic energy. The graph below shows the number of β particles as a function of their kinetic energy. The kinetic energy found in assignment 8 is the energy value that occurs most (Ek in the graph). From other experiments it is known that ...
Quantum Information Processing (Communication) with Photons
... • only weak interaction with environment (good coherence) • high-speed (c), low-loss transmission (‘flying qubits’ for longdistance quantum communicati0n) • good single qubit control with standard optical components (waveplates, beamsplitters, mirrors,…) • efficient photon detectors (photodiodes,…) ...
... • only weak interaction with environment (good coherence) • high-speed (c), low-loss transmission (‘flying qubits’ for longdistance quantum communicati0n) • good single qubit control with standard optical components (waveplates, beamsplitters, mirrors,…) • efficient photon detectors (photodiodes,…) ...
Physics 124 : Particles and Waves
... The images below show a striking example of this, where electrons are fired, one at a time, toward a double slit the positions of the electrons that make it through the slit and hit the screen are recorded with time, the characteristic double-slit diffraction pattern appears ...
... The images below show a striking example of this, where electrons are fired, one at a time, toward a double slit the positions of the electrons that make it through the slit and hit the screen are recorded with time, the characteristic double-slit diffraction pattern appears ...
EOC_chapter28
... After learning about de Broglie’s hypothesis that particles of momentum p have wave characteristics with wavelength λ = h/p, an 80.0-kg student has grown concerned about being diffracted when passing through a 75.0-cm-wide doorway. Assume that significant diffraction occurs when the width of the dif ...
... After learning about de Broglie’s hypothesis that particles of momentum p have wave characteristics with wavelength λ = h/p, an 80.0-kg student has grown concerned about being diffracted when passing through a 75.0-cm-wide doorway. Assume that significant diffraction occurs when the width of the dif ...
The Quantum Model of the Atom
... • Idea involved the detection of electrons, which are detected by their interactions with photons • Because photons have about the same energy as electrons, any attempt to locate a specific electron with a photon knocks the electron off its course • Results in uncertainty in trying to locate an el ...
... • Idea involved the detection of electrons, which are detected by their interactions with photons • Because photons have about the same energy as electrons, any attempt to locate a specific electron with a photon knocks the electron off its course • Results in uncertainty in trying to locate an el ...
ONE-ELECTRON ATOMS: SPECTRAL PATTERNS Late 19th
... mass particles, like electrons. In other words, both light and matter can exhibit particle-like and wave-like behavior. If so, he argues, electrons (and perhaps other, very light particles) ought to have wave-like properties: they won’t be localized, but exist over some spatial extent; they will hav ...
... mass particles, like electrons. In other words, both light and matter can exhibit particle-like and wave-like behavior. If so, he argues, electrons (and perhaps other, very light particles) ought to have wave-like properties: they won’t be localized, but exist over some spatial extent; they will hav ...
Quantum Information Processing (Communication) with Photons
... • only weak interaction with environment (good coherence) • high-speed (c), low-loss transmission (‘flying qubits’ for longdistance quantum communicati0n) • good single qubit control with standard optical components (waveplates, beamsplitters, mirrors,…) • efficient photon detectors (photodiodes,…) ...
... • only weak interaction with environment (good coherence) • high-speed (c), low-loss transmission (‘flying qubits’ for longdistance quantum communicati0n) • good single qubit control with standard optical components (waveplates, beamsplitters, mirrors,…) • efficient photon detectors (photodiodes,…) ...
Unit 1: Kinematics - Pre University Courses
... (b) Answers may vary. Students should add the following information to their concept maps: Louis de Broglie believed that all entities have wave-like properties but these properties are only significant and measureable for tiny, fast-moving particles like the electron. Erwin Schrödinger imagined el ...
... (b) Answers may vary. Students should add the following information to their concept maps: Louis de Broglie believed that all entities have wave-like properties but these properties are only significant and measureable for tiny, fast-moving particles like the electron. Erwin Schrödinger imagined el ...
Document
... (1) A particle moves forward in time, emits two photons at ( x2 , t2 ) and moves back in time with negative energy to point ( x1 , t1 ) where it scatters off a photon and moves forward in time. There is only one particle moving through space and time. (2) At point ( x1 , t1 ) an antiparticle-particl ...
... (1) A particle moves forward in time, emits two photons at ( x2 , t2 ) and moves back in time with negative energy to point ( x1 , t1 ) where it scatters off a photon and moves forward in time. There is only one particle moving through space and time. (2) At point ( x1 , t1 ) an antiparticle-particl ...
Modern Physics: PHYS 344
... This worked at longer wavelengths but deviates badly at short ones. This problem became known as the ultraviolet catastrophe and was one of the many effects classical physics couldn’t explain. ...
... This worked at longer wavelengths but deviates badly at short ones. This problem became known as the ultraviolet catastrophe and was one of the many effects classical physics couldn’t explain. ...
Exercises in Statistical Mechanics
... (a3) Find the heat capacity C(T ) of the gas using the partition function of item (a2). Define what temperature is required to get the classical limit. (a4) Calculate the forces F1 and F2 that the particles apply on the upper and lower plates. (b1) Write the one-particle Hamiltonian and calculate th ...
... (a3) Find the heat capacity C(T ) of the gas using the partition function of item (a2). Define what temperature is required to get the classical limit. (a4) Calculate the forces F1 and F2 that the particles apply on the upper and lower plates. (b1) Write the one-particle Hamiltonian and calculate th ...
Quantum Mechanics (this is a sophomore/junior
... me. This is why it is possible to use a mixed lecture-discussion format here. My approach is to present students with experimental findings and then to ask them to try and explain the experiments. Discovering the solution to the atomic structure problem on their own will help students see that this ...
... me. This is why it is possible to use a mixed lecture-discussion format here. My approach is to present students with experimental findings and then to ask them to try and explain the experiments. Discovering the solution to the atomic structure problem on their own will help students see that this ...
The search for invisible light - INFN-LNF
... It has been proven that any hypothetical massive particles sensitive to the weak interaction (WIMP) would naturally be able to produce the correct relic abundance, a fact that has been often dubbed as «the WIMP miracle». The above mentioned Neutralino is such a kind of particle in fact For this rea ...
... It has been proven that any hypothetical massive particles sensitive to the weak interaction (WIMP) would naturally be able to produce the correct relic abundance, a fact that has been often dubbed as «the WIMP miracle». The above mentioned Neutralino is such a kind of particle in fact For this rea ...
A quantum point contact for ultra cold Fermions
... Fermi gas of atoms [1]. We employ ultra-high resolution lithography to shape light potentials that realize either a quantum point contact or a quantum wire for atoms. These constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degene ...
... Fermi gas of atoms [1]. We employ ultra-high resolution lithography to shape light potentials that realize either a quantum point contact or a quantum wire for atoms. These constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degene ...
che-20028 QC lecture 2 - Rob Jackson`s Website
... What are wave functions? • If we treat an electron as a particle, we can say what its position and momentum (trajectory) is at any time. • For wave behaviour, the trajectory is replaced by the wave function. • The wave function provides all the possible information about the electron. CHE-20028 QC ...
... What are wave functions? • If we treat an electron as a particle, we can say what its position and momentum (trajectory) is at any time. • For wave behaviour, the trajectory is replaced by the wave function. • The wave function provides all the possible information about the electron. CHE-20028 QC ...
Document
... Weak measurements: from the 3-box problem to Hardy's Paradox to the which-path debate • The 3-box problem • Another case where airtight classical reasoning yields seemingly contradictory information • Experimental consequences of this information • Actual experiment! • Weak measurements shed light o ...
... Weak measurements: from the 3-box problem to Hardy's Paradox to the which-path debate • The 3-box problem • Another case where airtight classical reasoning yields seemingly contradictory information • Experimental consequences of this information • Actual experiment! • Weak measurements shed light o ...
Slide 1
... nucleus turns into an electron and a positron both going very nearly along the direction of the photon. The probability this will happen is proportional to the square of the charge of the target particle. Much more likely near a uranium nucleus than near a proton – by a factor of 82^2. A relatively ...
... nucleus turns into an electron and a positron both going very nearly along the direction of the photon. The probability this will happen is proportional to the square of the charge of the target particle. Much more likely near a uranium nucleus than near a proton – by a factor of 82^2. A relatively ...