Quantum Computing Using Linear Optics
... intense laser pumping pulse through a nonlinear medium so that correlated pairs of photons occasionally emerge. SPDC is a purely quantum-mechanical phenomenon that can be viewed as the annihilation of a single photon in the laser pulse followed by the creation of two lowerenergy down-conversion phot ...
... intense laser pumping pulse through a nonlinear medium so that correlated pairs of photons occasionally emerge. SPDC is a purely quantum-mechanical phenomenon that can be viewed as the annihilation of a single photon in the laser pulse followed by the creation of two lowerenergy down-conversion phot ...
Module P11.1 Reflection and transmission at steps and barriers
... work in developing useful devices called tunnel diodes which depend for their operation on the same effect. These devices have opened up whole new areas of physics and technology. In 1986, another Nobel Prize was awarded to Binnig and Rohrer for their invention of the scanning tunnelling electron mi ...
... work in developing useful devices called tunnel diodes which depend for their operation on the same effect. These devices have opened up whole new areas of physics and technology. In 1986, another Nobel Prize was awarded to Binnig and Rohrer for their invention of the scanning tunnelling electron mi ...
Document
... Quantum mechanics emerged in the beginning of the twentieth century as a new discipline because of the need to describe phenomena, which could not be explained using Newtonian mechanics or classical electromagnetic theory. page 5 of 24 ...
... Quantum mechanics emerged in the beginning of the twentieth century as a new discipline because of the need to describe phenomena, which could not be explained using Newtonian mechanics or classical electromagnetic theory. page 5 of 24 ...
Spontaneous Emission and Superradiance
... spontaneous emission was done by Victor Weisskopf and Eugen Wigner in 1930. They used Dirac’s light-theory and calculated the natural linewidth of atomic crossovers. They have shown, that an excited electronic state is not an stationary state, as we know it from Schrödinger’s equation of the electro ...
... spontaneous emission was done by Victor Weisskopf and Eugen Wigner in 1930. They used Dirac’s light-theory and calculated the natural linewidth of atomic crossovers. They have shown, that an excited electronic state is not an stationary state, as we know it from Schrödinger’s equation of the electro ...
Statistical Methods and Thermodynamics Chem 530b: Lecture
... The lecture notes are online at http://ursula.chem.yale.edu/ batista/classes/vaa/index.html Furthermore, a useful mathematical reference is R. Shankar, Basic Training in Mathematics. A ...
... The lecture notes are online at http://ursula.chem.yale.edu/ batista/classes/vaa/index.html Furthermore, a useful mathematical reference is R. Shankar, Basic Training in Mathematics. A ...
Mass-imbalanced Three-Body Systems in Two Dimensions
... Manipulating quantum systems on large, small and intermediate scales is no longer a distant dream. Ultracold quantum gases experiments have realized Bose-Einstein condensates [1] and degenerate Fermi gases [2] and study truly remarkable many-body states, but it has also proven its worth in exploring ...
... Manipulating quantum systems on large, small and intermediate scales is no longer a distant dream. Ultracold quantum gases experiments have realized Bose-Einstein condensates [1] and degenerate Fermi gases [2] and study truly remarkable many-body states, but it has also proven its worth in exploring ...
PDF only - at www.arxiv.org.
... communications. Quantum logic operations can be performed using the quantum Zeno effect produced by strong two-photon absorption [1, 2], while the resolution of images can be enhanced using two-photon absorption in conjunction with quantum imaging techniques [3]. Two-photon absorption can also be us ...
... communications. Quantum logic operations can be performed using the quantum Zeno effect produced by strong two-photon absorption [1, 2], while the resolution of images can be enhanced using two-photon absorption in conjunction with quantum imaging techniques [3]. Two-photon absorption can also be us ...
First-Person Plural Quantum Mechanics
... between propositions makes it possible for us to think of these aspects as properties related by causality. And applied to the simultaneous (or spacelike related) aspects of our experience, the same relation makes it possible for us to think of these aspects as a self-existent system of objects rel ...
... between propositions makes it possible for us to think of these aspects as properties related by causality. And applied to the simultaneous (or spacelike related) aspects of our experience, the same relation makes it possible for us to think of these aspects as a self-existent system of objects rel ...
PDF
... last five terms as the cross-phase-modulation (XPM) between any two optical fields. After obtaining the Hamiltonian responsible for the quantum FWM process, we are ready to tackle our next task: calculate the state vector evolution. It is worthwhile, at this point, to define the various electric fie ...
... last five terms as the cross-phase-modulation (XPM) between any two optical fields. After obtaining the Hamiltonian responsible for the quantum FWM process, we are ready to tackle our next task: calculate the state vector evolution. It is worthwhile, at this point, to define the various electric fie ...
Module Guide
... An in-module assessment consisting of three parts. Part 1 is from the Mathematical strand of the course. It is a closed book test based on the work covered in Algebra, Complex Numbers, Probability and Vectors. Part 1 is worth 10 % of the total module assessment. Part 2 is a research based assignment ...
... An in-module assessment consisting of three parts. Part 1 is from the Mathematical strand of the course. It is a closed book test based on the work covered in Algebra, Complex Numbers, Probability and Vectors. Part 1 is worth 10 % of the total module assessment. Part 2 is a research based assignment ...
The weak-coupling limit of large classical and quantum systems
... and w a suitable kernel. All the qualitative properties as the conservation laws and the H-theorem are obviously still valid. The arguments we have used in deriving the Boltzmann equation are delicate and require a more rigorous and deeper analysis. If we want that the Boltzmann equation is not a ph ...
... and w a suitable kernel. All the qualitative properties as the conservation laws and the H-theorem are obviously still valid. The arguments we have used in deriving the Boltzmann equation are delicate and require a more rigorous and deeper analysis. If we want that the Boltzmann equation is not a ph ...
One-dimensional theory of the quantum Hall system
... It is commonly believed that even more complex states are realized in the quantum Hall system. Of special interest, in particular due to their possible application as topologically protected quantum bits, or ’qubits’ (building blocks for a quantum computer) [9], are non-abelian states [19] that may ...
... It is commonly believed that even more complex states are realized in the quantum Hall system. Of special interest, in particular due to their possible application as topologically protected quantum bits, or ’qubits’ (building blocks for a quantum computer) [9], are non-abelian states [19] that may ...
Exciton polarizability in semiconductor nanocrystals
... potential applications of QDs in lasers10 , light-emitting diodes11 , photodetectors and other photovoltaic devices12 . The polarizability of quantum-confined excitons has previously been examined using Stark shift measurements13–15 . It is desirable to have a direct experimental determination of the ...
... potential applications of QDs in lasers10 , light-emitting diodes11 , photodetectors and other photovoltaic devices12 . The polarizability of quantum-confined excitons has previously been examined using Stark shift measurements13–15 . It is desirable to have a direct experimental determination of the ...
Reply to seven commentaries on “Consciousness in the universe: ScienceDirect
... This is a frequent misunderstanding. The role of gravitation in Orch OR is quite different from that of other forces, and it is not in competition with them. The DP proposal, upon which Orch OR relies, is not even a form of “quantum gravity” in the normal sense of that term, where the rules of quant ...
... This is a frequent misunderstanding. The role of gravitation in Orch OR is quite different from that of other forces, and it is not in competition with them. The DP proposal, upon which Orch OR relies, is not even a form of “quantum gravity” in the normal sense of that term, where the rules of quant ...
Picture - Weebly
... We aim to change medicine forever. We aim to restore sanity to it. The history of government meddling in health is not entirely a happy one. So, as far as is humanly possible, we are also aiming to liberate people from both government and private bureaucracies and to leave them in charge of their ow ...
... We aim to change medicine forever. We aim to restore sanity to it. The history of government meddling in health is not entirely a happy one. So, as far as is humanly possible, we are also aiming to liberate people from both government and private bureaucracies and to leave them in charge of their ow ...
Lecture 17
... They are summarized in figure 8. The wavelength range depends on the band gap of the active material. Typical laser materials are similar to the ones used for LEDs, i.e. direct band gap semiconductors. GaAs based lasers are used in the near IR region while for larger wavelengths (in the mid IR regio ...
... They are summarized in figure 8. The wavelength range depends on the band gap of the active material. Typical laser materials are similar to the ones used for LEDs, i.e. direct band gap semiconductors. GaAs based lasers are used in the near IR region while for larger wavelengths (in the mid IR regio ...
Temporal Multimode Storage of Entangled Photon Pairs
... for 900 seconds and the sequence is repeated many times (see Table I). The experimental value of the entanglement witness is T ¼ 3.67 0.06, two standard deviations above the upper bound (6) of 3.535, attainable when only one pair is entangled while the other is separable. One can find all the coun ...
... for 900 seconds and the sequence is repeated many times (see Table I). The experimental value of the entanglement witness is T ¼ 3.67 0.06, two standard deviations above the upper bound (6) of 3.535, attainable when only one pair is entangled while the other is separable. One can find all the coun ...
What Is Quantum Information? - Quantum Theory Group at CMU
... information about Sx before measurement took place. ◦ Call this X information about the particle • Measure Sz using Stern-Gerlach ◦ Result is Sz = +1/2 or Sz = −1/2 ◦ Call this Z information about the particle • X info and Z info are incompatible, different species, they cannot be combined. • “Sx = ...
... information about Sx before measurement took place. ◦ Call this X information about the particle • Measure Sz using Stern-Gerlach ◦ Result is Sz = +1/2 or Sz = −1/2 ◦ Call this Z information about the particle • X info and Z info are incompatible, different species, they cannot be combined. • “Sx = ...
