Cavity QED
... • Cavity QED quantum computing attempts to combine two very hard experimental techniques: the high-finesse optical cavity and the single ion/atom trapping. This is not just doubly-veryhard, but may well be (very-hard)2 • Assuming “hard” > 1, we have “very hard” >> 1, and (“very hard”)2 >> “very hard ...
... • Cavity QED quantum computing attempts to combine two very hard experimental techniques: the high-finesse optical cavity and the single ion/atom trapping. This is not just doubly-veryhard, but may well be (very-hard)2 • Assuming “hard” > 1, we have “very hard” >> 1, and (“very hard”)2 >> “very hard ...
Lecture 3: The Wave Function
... definite position. The probability density of this superposition state will show no interference because when one of the component wavefunctions exhibits a peak, the other component wavefunction is zero, so their product is zero at all positions. Similarly, ψ6 = ψ3 + ψ4 is a superposition of two stat ...
... definite position. The probability density of this superposition state will show no interference because when one of the component wavefunctions exhibits a peak, the other component wavefunction is zero, so their product is zero at all positions. Similarly, ψ6 = ψ3 + ψ4 is a superposition of two stat ...
Entanglement verification with detection efficiency
... optical signals, which are naturally described in an infinite dimensional Hilbert space, to encode information. To measure optical signals, we tend to use threshold detectors, which do not provide any refined knowledge about the photon number of an incoming signal. Often, there is a detection effici ...
... optical signals, which are naturally described in an infinite dimensional Hilbert space, to encode information. To measure optical signals, we tend to use threshold detectors, which do not provide any refined knowledge about the photon number of an incoming signal. Often, there is a detection effici ...
quantum physics - Enggphysicsvenkat
... Furthermore, according to this theory, a sufficiently dim light would be expected to show a lag time between the initial shining of its light and the subsequent emission of an electron. However, the experimental results did not correlate with either of the two predictions made by this theory ...
... Furthermore, according to this theory, a sufficiently dim light would be expected to show a lag time between the initial shining of its light and the subsequent emission of an electron. However, the experimental results did not correlate with either of the two predictions made by this theory ...
SOLID-STATE PHYSICS 3, Winter 2008 O. Entin-Wohlman Conductivity and conductance
... classical result will be 2|A|2 , while the quantum-mechanical one is 4|A|2 . It follows that the quantum mechanical probability to return to the origin is twice that obtained classically. Consequently, quantum-mechanical diffusion is slower than the classical one. In other words, quantum-mechanical ...
... classical result will be 2|A|2 , while the quantum-mechanical one is 4|A|2 . It follows that the quantum mechanical probability to return to the origin is twice that obtained classically. Consequently, quantum-mechanical diffusion is slower than the classical one. In other words, quantum-mechanical ...
Claude Cohen-Tannoudji Scott Lectures Cambridge, March 9 2011
... •The 2 clocks are contained in devices (experimental set ups, rockets,..) that are classical and whose trajectories can be measured by radio or laser ranging. The atomic transition of A and B used as a frequency standard is described quantum mechanically but the motion of A and B in space can be de ...
... •The 2 clocks are contained in devices (experimental set ups, rockets,..) that are classical and whose trajectories can be measured by radio or laser ranging. The atomic transition of A and B used as a frequency standard is described quantum mechanically but the motion of A and B in space can be de ...
Collapse and Revival in the Jaynes-Cummings
... [4] F. Semião and A. Vidiella-Barranco, Eur. Phys. J. 41, 9 (2007). [5] C. C. Gerry and P. L. Knight, Introductory Quantum Optics (Cambridge University Press, 40 West 20th Street, New York, NY 10011–4211, USA, 2005). [6] W. P. Schleich, Quantum Optics in Phase Space (WILEY-VCH, Berlin (Federal Repub ...
... [4] F. Semião and A. Vidiella-Barranco, Eur. Phys. J. 41, 9 (2007). [5] C. C. Gerry and P. L. Knight, Introductory Quantum Optics (Cambridge University Press, 40 West 20th Street, New York, NY 10011–4211, USA, 2005). [6] W. P. Schleich, Quantum Optics in Phase Space (WILEY-VCH, Berlin (Federal Repub ...
Entanglement with Negative Wigner Function of Almost 3000 Atoms
... atoms for a spin-squeezed state6, and very recently 13 out of 41 atoms for a non-Gaussian state13. Here we generate entanglement in a large atomic ensemble by detecting a single photon that has interacted with the ensemble20. An incident vertically polarized photon experiences a weak random polariza ...
... atoms for a spin-squeezed state6, and very recently 13 out of 41 atoms for a non-Gaussian state13. Here we generate entanglement in a large atomic ensemble by detecting a single photon that has interacted with the ensemble20. An incident vertically polarized photon experiences a weak random polariza ...
- Philsci
... rather than at a particular instant of time, the latter being a non-covariant notion. Its compatibility with relativity is also evident in that it makes use of both the positive and negative energy solutions obtained from the Schrödinger equation and the complex conjugate Schrödinger equation respec ...
... rather than at a particular instant of time, the latter being a non-covariant notion. Its compatibility with relativity is also evident in that it makes use of both the positive and negative energy solutions obtained from the Schrödinger equation and the complex conjugate Schrödinger equation respec ...
INTRODUCTION TO WAVE PACKETS
... Localized wave packet can be constructed by superposing waves of slightly different wavelength but phases and amplitudes chosen Constructively in desired region and destructively in other region ...
... Localized wave packet can be constructed by superposing waves of slightly different wavelength but phases and amplitudes chosen Constructively in desired region and destructively in other region ...
- Philsci
... rather than at a particular instant of time, the latter being a non-covariant notion. Its compatibility with relativity is also evident in that it makes use of both the positive and negative energy solutions obtained from the Schrödinger equation and the complex conjugate Schrödinger equation respec ...
... rather than at a particular instant of time, the latter being a non-covariant notion. Its compatibility with relativity is also evident in that it makes use of both the positive and negative energy solutions obtained from the Schrödinger equation and the complex conjugate Schrödinger equation respec ...
Atom InterferometryPrecision D. E. Pritchard
... diffraction grating. In this case, loss of contrast still occurs, but less abruptly as a function of separation, and this de-phasing arises from a qualitatively different reason. The atom’s own longitudinal momentum plays the role of the environment. This mechanism may not qualify as quantum decoher ...
... diffraction grating. In this case, loss of contrast still occurs, but less abruptly as a function of separation, and this de-phasing arises from a qualitatively different reason. The atom’s own longitudinal momentum plays the role of the environment. This mechanism may not qualify as quantum decoher ...
a new insight into the quantization of energy
... classical light wave directly corresponds, in some limiting way, to the frequency of a photon. Niels Bohr applied Planck’s construct to the atomic structure of the atom. Bohr’s quantized atom explained the emission spectrum of the atoms and the chemical properties of the elements. 7 According to cla ...
... classical light wave directly corresponds, in some limiting way, to the frequency of a photon. Niels Bohr applied Planck’s construct to the atomic structure of the atom. Bohr’s quantized atom explained the emission spectrum of the atoms and the chemical properties of the elements. 7 According to cla ...
Proposal to produce two and four qubits with spatial modes of two
... where |uℓ ⟩ represents the spatial mode with topological charge ℓ, which has OAM ℓh̄, ℓp is the topological charge of the pump beam, and cℓ is a complex coefficient. The entanglement is retrieved by projection of the state onto a subset of modes via forked gratings,4 spiral phase plates,9 sector pla ...
... where |uℓ ⟩ represents the spatial mode with topological charge ℓ, which has OAM ℓh̄, ℓp is the topological charge of the pump beam, and cℓ is a complex coefficient. The entanglement is retrieved by projection of the state onto a subset of modes via forked gratings,4 spiral phase plates,9 sector pla ...
Part 18
... The Wave Equation – here comes the math! Mathematically, what are we trying to do? • We need to CONFINE an electron to an atom (i.e., set spatial boundaries) We need to describe the electron’s position using its wave-like properties. • We will have to choose a wavefunction of some kind. (sine? cosin ...
... The Wave Equation – here comes the math! Mathematically, what are we trying to do? • We need to CONFINE an electron to an atom (i.e., set spatial boundaries) We need to describe the electron’s position using its wave-like properties. • We will have to choose a wavefunction of some kind. (sine? cosin ...