Inverse mapping
... by adjusting their energy. This phenomenon is called the quantum size effect. The quantum size effect can be approximately described by the “particle in a box” model. How good is this approximation? Good – see ...
... by adjusting their energy. This phenomenon is called the quantum size effect. The quantum size effect can be approximately described by the “particle in a box” model. How good is this approximation? Good – see ...
L 35 Modern Physics [1] Modern Physics
... Newton’s Laws have flaws! • Newton’s laws, which were so successful in allowing us to understand the behavior of big objects such as the motions of the planets, failed when pushed to explain atomic size phenomena. • The discovery of the laws of atomic physics led to every important 20th century disc ...
... Newton’s Laws have flaws! • Newton’s laws, which were so successful in allowing us to understand the behavior of big objects such as the motions of the planets, failed when pushed to explain atomic size phenomena. • The discovery of the laws of atomic physics led to every important 20th century disc ...
Entanglement, which-way measurements, and a quantum erasure Christian Ferrari Bernd Braunecker
... can be erased, and the interference pattern at the screen can be restored. This result was confirmed experimentally by Dürr et al.9 using a modified Mach–Zehnder interferometer 共see also Refs. 10 and 11兲. II. THE MACH–ZEHNDER INTERFEROMETER We consider the Mach–Zehnder interferometer shown in Fig. 2 ...
... can be erased, and the interference pattern at the screen can be restored. This result was confirmed experimentally by Dürr et al.9 using a modified Mach–Zehnder interferometer 共see also Refs. 10 and 11兲. II. THE MACH–ZEHNDER INTERFEROMETER We consider the Mach–Zehnder interferometer shown in Fig. 2 ...
Early Quantum Theory Powerpoint
... multiple E nhf n – is a quantum number It is quantized – occurs in only discrete quantities ...
... multiple E nhf n – is a quantum number It is quantized – occurs in only discrete quantities ...
Baby-Quiz
... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...
... don’t all the photoelectrons have the same kinetic energy when they leave the metal’s surface? 4. What property of the emitted electrons depends on the intensity of incident light?What property of the emitted photoelectrons depends on the frequency of incident light? ...
... this transfer using ‘slow light’3. Under particular conditions dictated by quantum mechanics, the speed of a light pulse that has been injected into an atom cloud illuminated by a control laser can be reduced by many orders of magnitude. As the pulse slows, its spatial extent shrinks, and it ultimat ...
Time-bin entangled qubits for quantum communication created by
... efficiency of Alice’s detector, and f is the laser frequency. In this case we have to estimate the values of t A and A 共the quantum efficiency can be measured but it is not a straightforward measurement兲. We present in this section a new, easily visualized, and straightforward way of measuring thi ...
... efficiency of Alice’s detector, and f is the laser frequency. In this case we have to estimate the values of t A and A 共the quantum efficiency can be measured but it is not a straightforward measurement兲. We present in this section a new, easily visualized, and straightforward way of measuring thi ...
Physics 610: Quantum Optics
... description of the radiation field and its interaction with matter, as treated in the later chapters. We begin at chapter 10, in which Maxwell’s equations are quantized, and we then proceed to consider various properties, measurements, and physical states of the quantized radiation field, including ...
... description of the radiation field and its interaction with matter, as treated in the later chapters. We begin at chapter 10, in which Maxwell’s equations are quantized, and we then proceed to consider various properties, measurements, and physical states of the quantized radiation field, including ...
The UNCERTAINTY PRINCIPLE Uncertainty Principle II
... We can now explain this paradox fairly easily. Suppose we have a state of 2 spins such that they must be opposite. We can write one such state as Ψ = | ++> which is a simple notation meaning they are both up. Another could be |− − > meaning they are both down; and we could have ( | ++> + | − − > ) . ...
... We can now explain this paradox fairly easily. Suppose we have a state of 2 spins such that they must be opposite. We can write one such state as Ψ = | ++> which is a simple notation meaning they are both up. Another could be |− − > meaning they are both down; and we could have ( | ++> + | − − > ) . ...
Photon pairs with coherence time exceeding 1 μs
... The experiment is run periodically with 4.5 ms MOT time followed by 0.5 ms biphoton generation time in each cycle. At end of the MOT time, the trapping and repumping lasers (not shown in Fig. 1) are switched off and all the atoms are optically pumped to the ground level j1i. During the biphoton gene ...
... The experiment is run periodically with 4.5 ms MOT time followed by 0.5 ms biphoton generation time in each cycle. At end of the MOT time, the trapping and repumping lasers (not shown in Fig. 1) are switched off and all the atoms are optically pumped to the ground level j1i. During the biphoton gene ...
Winter 2008 Physics 315 / 225
... Component of E along transmission axis is transmitted After a Polaroid sheet the direction of E is along the transmission axis ...
... Component of E along transmission axis is transmitted After a Polaroid sheet the direction of E is along the transmission axis ...
Answers
... 1) A water wave passes through two slits. Which matches the amplitude far from the slits? A double slit interference pattern will form with an odd number of maxima with equal width. D is a single slit interference pattern because its central maximum is twice as wide as the others. B is only true if ...
... 1) A water wave passes through two slits. Which matches the amplitude far from the slits? A double slit interference pattern will form with an odd number of maxima with equal width. D is a single slit interference pattern because its central maximum is twice as wide as the others. B is only true if ...
Quantum Physics
... 11) List the 4 quantum numbers of an atom. Describe what each quantizes and give the range of possible values. CLICK FOR ANSWER Quantum mechanics applied to atoms give rise to the following five quantum numbers. Since the spin quantum number (s) is always ½, you only need the remaining four quantum ...
... 11) List the 4 quantum numbers of an atom. Describe what each quantizes and give the range of possible values. CLICK FOR ANSWER Quantum mechanics applied to atoms give rise to the following five quantum numbers. Since the spin quantum number (s) is always ½, you only need the remaining four quantum ...
Heralded atomic-ensemble quantum memory for photon polarization states
... opaque to the photon. This can be achieved by focusing the photon to a small area containing the atom, and passing it through this area many times using mirrors with very low loss [10]. In the optical domain an opacity (or resonant optical depth η) of ∼100 can be achieved in this way [10, 11]. An al ...
... opaque to the photon. This can be achieved by focusing the photon to a small area containing the atom, and passing it through this area many times using mirrors with very low loss [10]. In the optical domain an opacity (or resonant optical depth η) of ∼100 can be achieved in this way [10, 11]. An al ...
L 33 Modern Physics [1] Modern Physics
... • In the classical picture, the electrons in atoms orbit around the nucleus just as the planets orbit around the Sun. • However, the laws of mechanics and electromagnetism predict that an orbiting electron should continually radiate electromagnetic waves, and very quickly the electron would loose al ...
... • In the classical picture, the electrons in atoms orbit around the nucleus just as the planets orbit around the Sun. • However, the laws of mechanics and electromagnetism predict that an orbiting electron should continually radiate electromagnetic waves, and very quickly the electron would loose al ...
L 34 Modern Physics [1]
... • When light shines on a metal surface, electrons may pop out • Photoelectrons are only emitted if the wavelength of the light is shorter than some maximum value, no matter how intense the light is, so the color (wavelength) is critical • blue light makes electrons pop out, red light does not ...
... • When light shines on a metal surface, electrons may pop out • Photoelectrons are only emitted if the wavelength of the light is shorter than some maximum value, no matter how intense the light is, so the color (wavelength) is critical • blue light makes electrons pop out, red light does not ...
Probing contextuality with superconducting quantum circuits Talk 27. Oct. 2015 ABSTRACT:
... Contextuality is one of the most fundamental property which distinguishes quantum mechanics from classical theory. It has also been suggested to be the 'magical' resource responsible for an exponential speedup of a quantum computer. We will provide the first experimental evidence of this resource fo ...
... Contextuality is one of the most fundamental property which distinguishes quantum mechanics from classical theory. It has also been suggested to be the 'magical' resource responsible for an exponential speedup of a quantum computer. We will provide the first experimental evidence of this resource fo ...
PPT
... We “know” (i.e., we have constrained) which way the particle went. With both slits open, a particle interferes with itself to produce the observed two-slit interference pattern. This amazing interference effect reflects, in a fundamental way, the indeterminacy of which slit the particle went through ...
... We “know” (i.e., we have constrained) which way the particle went. With both slits open, a particle interferes with itself to produce the observed two-slit interference pattern. This amazing interference effect reflects, in a fundamental way, the indeterminacy of which slit the particle went through ...