Hypercomputation - the UNC Department of Computer Science
... At least one physicist, Dr. Guenter Nimtz of the University of Cologne, holds the opinion that a number of experiments, including those of the Italian group, have in fact sent information superluminally. But not even Dr. Nimtz believes that this trick would allow one to reach back in time. He says, ...
... At least one physicist, Dr. Guenter Nimtz of the University of Cologne, holds the opinion that a number of experiments, including those of the Italian group, have in fact sent information superluminally. But not even Dr. Nimtz believes that this trick would allow one to reach back in time. He says, ...
Large Quantum Superpositions and Interference of Massive
... spatial locations are allowed by quantum mechanics. This puzzling prediction has been observed in seminal matterwave interferometry experiments with electrons, neutrons, atoms and dimers, van der Waals clusters, and even complex molecules (e.g., C70 , C60 F48 ) [1]. Preparing quantum superpositions ...
... spatial locations are allowed by quantum mechanics. This puzzling prediction has been observed in seminal matterwave interferometry experiments with electrons, neutrons, atoms and dimers, van der Waals clusters, and even complex molecules (e.g., C70 , C60 F48 ) [1]. Preparing quantum superpositions ...
Quantum Gaussian Noise - Research Laboratory of Electronics
... High-sensitivity photodetectors are in widespread use in high-performance optical communication and interferometric precision-measurement systems. Statistical analyses of such systems almost invariably rely on the semiclassical theory of photodetection.1–3 According to semiclassical theory, light is ...
... High-sensitivity photodetectors are in widespread use in high-performance optical communication and interferometric precision-measurement systems. Statistical analyses of such systems almost invariably rely on the semiclassical theory of photodetection.1–3 According to semiclassical theory, light is ...
Quantum Bits - Science News
... code. Eachindividualbit must be either a 0 or a 1, and quantummechanics doesn't enter into the computationsthemselves. In contrast, quantum computation invokes quantum mechanics in a far more explicit manner. Encoded using two differentenergy levels of a particle, each bit in a quantum computer can ...
... code. Eachindividualbit must be either a 0 or a 1, and quantummechanics doesn't enter into the computationsthemselves. In contrast, quantum computation invokes quantum mechanics in a far more explicit manner. Encoded using two differentenergy levels of a particle, each bit in a quantum computer can ...
Wave-Particle Duality
... which reimagines dynamical forces as the spatial curvature caused by the overall matter distribution. Particles are determined to follow shortest-distance paths (geodesics) that are present in space. In our information analysis of quantum mechanics, particles follow paths determined by the probabili ...
... which reimagines dynamical forces as the spatial curvature caused by the overall matter distribution. Particles are determined to follow shortest-distance paths (geodesics) that are present in space. In our information analysis of quantum mechanics, particles follow paths determined by the probabili ...
ppt - Harvard Condensed Matter Theory group
... Classical measurement: collapse of the wavefunction into eigenstates of x ...
... Classical measurement: collapse of the wavefunction into eigenstates of x ...
Quantum Numbers Quiz
... 6. What values of the angular momentum quantum number are allowed for a given atom? a) from 0 to 4 b) from 0 to n c) from 0 to (n−1) d) from 1 to (n+1) ...
... 6. What values of the angular momentum quantum number are allowed for a given atom? a) from 0 to 4 b) from 0 to n c) from 0 to (n−1) d) from 1 to (n+1) ...
Bachelor Thesis
... desired, because this is the state which will be teleported, and then is combined with photon 2, one of the entangled photons joined in the first PDC process. In this way, photons 1 and 2 are together to make the Bell measurement. The device which makes the Bell measurement is called beam-splitter. ...
... desired, because this is the state which will be teleported, and then is combined with photon 2, one of the entangled photons joined in the first PDC process. In this way, photons 1 and 2 are together to make the Bell measurement. The device which makes the Bell measurement is called beam-splitter. ...
Lecture 4: Quantum states of light — Fock states • Definition Fock
... states are minimumuncertainty states because the uncertainty relation (5.16) obtains its lower limit. In other words, the coherent states cover a circular area in phase space of minimal allowed size (see Fig. 4). Squeezed states: However, Heisenberg’s uncertainty relation only limits the possible ...
... states are minimumuncertainty states because the uncertainty relation (5.16) obtains its lower limit. In other words, the coherent states cover a circular area in phase space of minimal allowed size (see Fig. 4). Squeezed states: However, Heisenberg’s uncertainty relation only limits the possible ...
Introduction to Quantum Mechanic
... mechanics, duality, addresses the inadequacy of classical concepts like "particle" and "wave" in fully describing the behavior of small-scale objects. Various interpretations of quantum mechanics attempt to explain this apparent paradox. ...
... mechanics, duality, addresses the inadequacy of classical concepts like "particle" and "wave" in fully describing the behavior of small-scale objects. Various interpretations of quantum mechanics attempt to explain this apparent paradox. ...
Chapter 30 Quantum Physics
... In 1923, de Broglie proposed that, as waves can exhibit particle-like behavior, particles should exhibit wave-like behavior as well. He proposed that the same relationship between wavelength and momentum should apply to massive particles as well as photons: ...
... In 1923, de Broglie proposed that, as waves can exhibit particle-like behavior, particles should exhibit wave-like behavior as well. He proposed that the same relationship between wavelength and momentum should apply to massive particles as well as photons: ...
quantum teleportation
... early 20th century. In the 1920’s Einstein was finding faults with quantum mechanics. At first Bohr could answer all of Einstein’s questions, but in 1935 this changed. In this year Einstein, together with his coworkers Podolsky and Rosen, published a paper (12) on a paradox concerning quantum mechan ...
... early 20th century. In the 1920’s Einstein was finding faults with quantum mechanics. At first Bohr could answer all of Einstein’s questions, but in 1935 this changed. In this year Einstein, together with his coworkers Podolsky and Rosen, published a paper (12) on a paradox concerning quantum mechan ...
authentication with quantum smart-card
... At an intuitive level, a quantum authentication scheme is a keyed system which allows QC smart-card to send an unchanged photon state with the polarization to the teller machine with a guarantee: if teller machine accepts the received state as ``good'' (the polarization of the second EPR photon is d ...
... At an intuitive level, a quantum authentication scheme is a keyed system which allows QC smart-card to send an unchanged photon state with the polarization to the teller machine with a guarantee: if teller machine accepts the received state as ``good'' (the polarization of the second EPR photon is d ...
Sixth lecture, 11.11.03 (BECs, lasers, superselection rules and
... Questions which seem unambiguous classically may have multiple answers in QM – in other words, different measurements which all yield "the time" classically need not yield the same thing in the quantum regime. In particular: in addition to affecting a pointer, the particle itself may be affected by ...
... Questions which seem unambiguous classically may have multiple answers in QM – in other words, different measurements which all yield "the time" classically need not yield the same thing in the quantum regime. In particular: in addition to affecting a pointer, the particle itself may be affected by ...
Slides from lecture 4.
... Now put 18 people (electrons) in the auditorium (atom). Note that no two people (electrons) can occupy the same seat (state)! So, when one row is filled, a new row is started. This is a fundamental property of quantum mechanics, i.e., no two electrons in an atom can exist in the same state. It is ca ...
... Now put 18 people (electrons) in the auditorium (atom). Note that no two people (electrons) can occupy the same seat (state)! So, when one row is filled, a new row is started. This is a fundamental property of quantum mechanics, i.e., no two electrons in an atom can exist in the same state. It is ca ...
Aalborg Universitet Beyond the Modern Physics and Cosmological Equations
... Beyond the Modern Physics and Cosmological Equations While the classical, wavelike behavior of light interference and diffraction has been easily observed in undergraduate laboratories for many years, explicit observation of the quantum nature of light i.e., photons is much more difficult. For exam ...
... Beyond the Modern Physics and Cosmological Equations While the classical, wavelike behavior of light interference and diffraction has been easily observed in undergraduate laboratories for many years, explicit observation of the quantum nature of light i.e., photons is much more difficult. For exam ...