On High-Efficiency Optical Communication and Key Distribution
... and degrade easily over poor atmospheric conditions. In Section III we propose to solve this problem using simple dense (thus non-orthogonal) Gaussian beams; by using spatial PPM modulation, interference between the beams is transformed into a simple noisy channel. We present the fundamental hardwar ...
... and degrade easily over poor atmospheric conditions. In Section III we propose to solve this problem using simple dense (thus non-orthogonal) Gaussian beams; by using spatial PPM modulation, interference between the beams is transformed into a simple noisy channel. We present the fundamental hardwar ...
Monday - AQIS 2016
... applications are widely spreading over quantum information processing. The HOM interference has been observed with not only photons but also other bosonic particles, e.g., surface plasmons[2], Helium 4 atoms[3] and phonons[4]. In spite of such demonstrations using various kinds of physical systems, ...
... applications are widely spreading over quantum information processing. The HOM interference has been observed with not only photons but also other bosonic particles, e.g., surface plasmons[2], Helium 4 atoms[3] and phonons[4]. In spite of such demonstrations using various kinds of physical systems, ...
Quantum telescopes
... Since the telescope was invented, astronomers have endeavoured to build ever larger telescopes. Figure 1 shows the Great Forty-Foot, built by William Herschel and his sister Caroline in the late 18th century. Its aperture diameter of 1.2 m was gigantic for the time. Accordingly, the costs greatly ex ...
... Since the telescope was invented, astronomers have endeavoured to build ever larger telescopes. Figure 1 shows the Great Forty-Foot, built by William Herschel and his sister Caroline in the late 18th century. Its aperture diameter of 1.2 m was gigantic for the time. Accordingly, the costs greatly ex ...
EmQM15-Symposium Introduction-Walleczek-Grössing-10-23-2015
... interesting quantum mechanical states, for which we can think of some (or all) of the spatial dimensions as emergent. Together with emergent space, we have the emergent dynamics of space and thus emergent gravity.” “But it is hard to imagine how time could be emergent? How would we formulate quan ...
... interesting quantum mechanical states, for which we can think of some (or all) of the spatial dimensions as emergent. Together with emergent space, we have the emergent dynamics of space and thus emergent gravity.” “But it is hard to imagine how time could be emergent? How would we formulate quan ...
The postulates of Quantum Mechanics
... principles (from the Latin principium), or axioms (from the Greek, axios), or postulates (from the Latin postulatum), all of these words meaning the same thing: a truth which doesn’t need any further proof, because it is obvious by itself. There is not a consensus of how many axioms one needs to des ...
... principles (from the Latin principium), or axioms (from the Greek, axios), or postulates (from the Latin postulatum), all of these words meaning the same thing: a truth which doesn’t need any further proof, because it is obvious by itself. There is not a consensus of how many axioms one needs to des ...
Bourdel-3 (doc, 273 KiB)
... Atomic gases have proven to be a useful ressource for precision measurements of the atom properties or of the external forces acting on them. For example, atom interferometers permit the measurement of the local gravity constant g with a relative accuracy of the order of 10 -8 at 1s 1. A long observ ...
... Atomic gases have proven to be a useful ressource for precision measurements of the atom properties or of the external forces acting on them. For example, atom interferometers permit the measurement of the local gravity constant g with a relative accuracy of the order of 10 -8 at 1s 1. A long observ ...
Nature template - PC Word 97
... Atomic gases have proven to be a useful ressource for precision measurements of the atom properties or of the external forces acting on them. For example, atom interferometers permit the measurement of the local gravity constant g with a relative accuracy of the order of 10 -8 at 1s 1. A long observ ...
... Atomic gases have proven to be a useful ressource for precision measurements of the atom properties or of the external forces acting on them. For example, atom interferometers permit the measurement of the local gravity constant g with a relative accuracy of the order of 10 -8 at 1s 1. A long observ ...
Educação - Química Nova
... simple model approximation. In addition, the Pauling EN based on molecular aspects is similar to Mulliken EN. The chemical behavior of the elements is governed by the average atomic shell properties. But the atomic IPs, listed in the common tables, are modified by the spin-orbit coupling and sometim ...
... simple model approximation. In addition, the Pauling EN based on molecular aspects is similar to Mulliken EN. The chemical behavior of the elements is governed by the average atomic shell properties. But the atomic IPs, listed in the common tables, are modified by the spin-orbit coupling and sometim ...
Quantum Public-Key Cryptosystems
... QC scheme is quantum mechanics (believed by most physicists), while that for a QPKC scheme is a computational assumption (e.g., existence of a one-way function) in the QTM model. Although several experimental QC systems have been already realized in the current technologies, recently reported securi ...
... QC scheme is quantum mechanics (believed by most physicists), while that for a QPKC scheme is a computational assumption (e.g., existence of a one-way function) in the QTM model. Although several experimental QC systems have been already realized in the current technologies, recently reported securi ...
First-Person Plural Quantum Mechanics
... the 20th. Kant taught us to distinguish between two concepts of reality, a transcendental reality and an empirical one, and Bohr stressed the need for this distinction when he reminded us that “in our description of nature the purpose is not to disclose the real essence of the phenomena but only to ...
... the 20th. Kant taught us to distinguish between two concepts of reality, a transcendental reality and an empirical one, and Bohr stressed the need for this distinction when he reminded us that “in our description of nature the purpose is not to disclose the real essence of the phenomena but only to ...
Quantum mechanics near closed timelike lines
... Oxford Uniuersity Mathematical Institute, 24-29 St Gi.les, Oxford OXI 3LB, England (Received 9 April 1991) ...
... Oxford Uniuersity Mathematical Institute, 24-29 St Gi.les, Oxford OXI 3LB, England (Received 9 April 1991) ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).