CONSTRAINTS ON HYDROSTATIC MODELS OF SOFT GAMMA
... opacity beyond the simple scattering opacity assumed here (Miller & Bulik 1995). Photon splitting may also increase the fraction of parallel mode photons. These further increase the radiation force, so the field strengths needed for hydrostatic atmospheres are even larger than those estimated in thi ...
... opacity beyond the simple scattering opacity assumed here (Miller & Bulik 1995). Photon splitting may also increase the fraction of parallel mode photons. These further increase the radiation force, so the field strengths needed for hydrostatic atmospheres are even larger than those estimated in thi ...
PDF
... Quantum mechanics offers a variety of opportunities both to protect information (quantum cryptography) and to improve the precision of measurement, positioning and timing techniques. We are developing the world’s brightest source of narrow band entangled photons and are planning to use this source t ...
... Quantum mechanics offers a variety of opportunities both to protect information (quantum cryptography) and to improve the precision of measurement, positioning and timing techniques. We are developing the world’s brightest source of narrow band entangled photons and are planning to use this source t ...
Entanglement, Decoherence and the Quantum/Classical
... | −〉 , without affecting the ion’s motion. These lasers exchange pairs of photons whose energy difference is fed into the ion’s internal energy. In the language of classical optics, we would say that the ion is responding to the beat frequency. By adjusting the pulse duration, one can obtain any des ...
... | −〉 , without affecting the ion’s motion. These lasers exchange pairs of photons whose energy difference is fed into the ion’s internal energy. In the language of classical optics, we would say that the ion is responding to the beat frequency. By adjusting the pulse duration, one can obtain any des ...
quantum computing
... not classical physics. • Quantum technology could not only further reduce the size of components , but could allow for development of new algorithms based on quantum concepts. ...
... not classical physics. • Quantum technology could not only further reduce the size of components , but could allow for development of new algorithms based on quantum concepts. ...
Lecture 3
... that are not orthogonal in a way that wakes a copy It is possible to clone quantum states with small success probability ...
... that are not orthogonal in a way that wakes a copy It is possible to clone quantum states with small success probability ...
Quantum Zeno Effect, Anti Zeno Effect and the Quantum recurrence theorem
... *Side note 1 - if we hadn’t taken cm = 1/N we would have gotten an ellipsoid instead of a sphere, yet our results still would have been valid, as explained in [1]. P *Side note 2 - taking N to be finitie is justified by the fact that |cm |2 = 1, thus we can find N for which this sum (truncated at N) ...
... *Side note 1 - if we hadn’t taken cm = 1/N we would have gotten an ellipsoid instead of a sphere, yet our results still would have been valid, as explained in [1]. P *Side note 2 - taking N to be finitie is justified by the fact that |cm |2 = 1, thus we can find N for which this sum (truncated at N) ...
“Quantum Computing: Dream or Nightmare”, Physics Today, 49, 51
... AH these schemes rely on the use of redundant information. Instead of encoding in single bits, one would encode 0 or 1 in entangled states made of three or more qubits. Whenever one bit flipped inadvertently, the accident would be recognized by a sensitive detection procedure (the watchdog) and corr ...
... AH these schemes rely on the use of redundant information. Instead of encoding in single bits, one would encode 0 or 1 in entangled states made of three or more qubits. Whenever one bit flipped inadvertently, the accident would be recognized by a sensitive detection procedure (the watchdog) and corr ...
Turing Machine
... The original Turing machine was deterministic (DTM): the head would be always in a single state, which would uniquely determine which direction it would go into and how far. There is a variant of the Turing machine, which is not deterministic. The head may be in a state, which gives the machine cer ...
... The original Turing machine was deterministic (DTM): the head would be always in a single state, which would uniquely determine which direction it would go into and how far. There is a variant of the Turing machine, which is not deterministic. The head may be in a state, which gives the machine cer ...
PDF
... loading protocol in which time slots of entangled photons are transmitted over optical fibers in the 1.55 µm lowloss window and gated into their respective quantum memories. We expect that the memory loading protocol can be run at cycling rates as high as R = 500 kHz, so that we can attempt to load a ...
... loading protocol in which time slots of entangled photons are transmitted over optical fibers in the 1.55 µm lowloss window and gated into their respective quantum memories. We expect that the memory loading protocol can be run at cycling rates as high as R = 500 kHz, so that we can attempt to load a ...
Quantum Information and Quantum Computation
... thousand times the diameter of an atom. Quantum mechanics is the theory of physics that describes the behavior of matter and energy in extreme conditions such as short times and tiny distances. As transistors and wires become smaller and smaller, they inevitably begin to behave in intrinsically quan ...
... thousand times the diameter of an atom. Quantum mechanics is the theory of physics that describes the behavior of matter and energy in extreme conditions such as short times and tiny distances. As transistors and wires become smaller and smaller, they inevitably begin to behave in intrinsically quan ...
Is the moon there when nobody looks?
... To enable you to test which category you belong to, I shall describe, in black-box terms, a very simple version of Bell’s gedanken experiment, deferring to the very end any reference whatever either to the underlying mechanism that makes the gadget work or to the quantum-theoretic analysis that acco ...
... To enable you to test which category you belong to, I shall describe, in black-box terms, a very simple version of Bell’s gedanken experiment, deferring to the very end any reference whatever either to the underlying mechanism that makes the gadget work or to the quantum-theoretic analysis that acco ...
Misconception about Quantum Physics slides
... • Misconception: No measurement can be made of a quantum particle without affecting that particle. • The above is always true in physics, and has nothing to do with quantum mechanics per se! • Nevertheless, HUP does imply that quantum measurement is very different from classical measurement. - parti ...
... • Misconception: No measurement can be made of a quantum particle without affecting that particle. • The above is always true in physics, and has nothing to do with quantum mechanics per se! • Nevertheless, HUP does imply that quantum measurement is very different from classical measurement. - parti ...
Hybrid discrete- and continuous
... of such measurements, it is possible to perform a complete tomography of any quantum state. One universal set of gates for CV computation is {ÛF , ÛZ , ÛP G , ÛSU M } with the single-mode Gaussian gates ÛF (Fourier transform) and ÛZ (displacement), the single-mode non-Gaussian cubic phase gate ...
... of such measurements, it is possible to perform a complete tomography of any quantum state. One universal set of gates for CV computation is {ÛF , ÛZ , ÛP G , ÛSU M } with the single-mode Gaussian gates ÛF (Fourier transform) and ÛZ (displacement), the single-mode non-Gaussian cubic phase gate ...
preskill-Annenberg30oct2009
... In general, there is no succinct classical description of the quantum state of a system of n qubits. But suppose, e.g., for qubits arranged in one dimension, that for any way of dividing the line into two segments, the strength of the quantum correlation (the amount of entanglement) between the two ...
... In general, there is no succinct classical description of the quantum state of a system of n qubits. But suppose, e.g., for qubits arranged in one dimension, that for any way of dividing the line into two segments, the strength of the quantum correlation (the amount of entanglement) between the two ...