Can many-valued logic help to comprehend quantum phenomena?
... The first attempts to explain numerous paradoxes of quantum mechanics on the basis of many-valued logic were made by Polish logician Zygmunt Zawirski in the early Thirties of the XX Century. Zawirski in his papers published in 1931 [24] and in 1932 [25] argued that Bohr’s complementarity could be co ...
... The first attempts to explain numerous paradoxes of quantum mechanics on the basis of many-valued logic were made by Polish logician Zygmunt Zawirski in the early Thirties of the XX Century. Zawirski in his papers published in 1931 [24] and in 1932 [25] argued that Bohr’s complementarity could be co ...
Testing the Dimension of Hilbert Spaces
... particular, if Pabjxy violates a Bell-type inequality [1], we know for sure that an entangled quantum state has been produced in the lab. If on the contrary Pabjxy can be distributed by shared randomness, the experiment may in fact be purely classical. The goal of this Letter is to introduce ano ...
... particular, if Pabjxy violates a Bell-type inequality [1], we know for sure that an entangled quantum state has been produced in the lab. If on the contrary Pabjxy can be distributed by shared randomness, the experiment may in fact be purely classical. The goal of this Letter is to introduce ano ...
introductory lecture on quantum computing
... – Measurement also makes X the new state and so interferes with computational processes – X is determined with some probability, implying uncertainty in the result – States cannot be copied (“cloned”), implying that signal fanout is not permitted – Environmental interference can cause a measurement- ...
... – Measurement also makes X the new state and so interferes with computational processes – X is determined with some probability, implying uncertainty in the result – States cannot be copied (“cloned”), implying that signal fanout is not permitted – Environmental interference can cause a measurement- ...
A (very) brief tour of quantum mechanics, computation, and category
... is incomplete, or the physical quantities associated with two non-commuting operators cannot have simultaneous reality. Subsequently, building on the behavior of a two component system under the laws of quantum theory, EPR argue for the incompleteness of quantum theory. The following scenario captur ...
... is incomplete, or the physical quantities associated with two non-commuting operators cannot have simultaneous reality. Subsequently, building on the behavior of a two component system under the laws of quantum theory, EPR argue for the incompleteness of quantum theory. The following scenario captur ...
Connecting processing-capable quantum memories over telecommunication links via quantum frequency conversion
... into an output of a different frequency while its quantum state is preserved. It is this state-preserving feature of SFG and DFG that enables the QFC operation. To build QFC devices compatible with the quantummemory devices described in sections 3 and 4, we consider the use of planar PPLN waveguides ...
... into an output of a different frequency while its quantum state is preserved. It is this state-preserving feature of SFG and DFG that enables the QFC operation. To build QFC devices compatible with the quantummemory devices described in sections 3 and 4, we consider the use of planar PPLN waveguides ...
Level Repulsion of Localized Excitons in Disordered Quantum Wells
... much larger than the potential correlation length x ¼ 17 nm, proving that the wave functions are localized over several minima of the disorder potential. In particular, this is inconsistent with an interpretation of level repulsion as being related to a single characteristic exciton size. Second, th ...
... much larger than the potential correlation length x ¼ 17 nm, proving that the wave functions are localized over several minima of the disorder potential. In particular, this is inconsistent with an interpretation of level repulsion as being related to a single characteristic exciton size. Second, th ...
Fulltext
... The very notion of locality breaks down at the Planck scale. There is a fundamental length scale of the order of the Planck length (ℓp ∼ 10−35 m) that cannot be probed in a finite time. This reflects the fact that the spacetime manifold has a noncommutative, foamy structure at the very high energy l ...
... The very notion of locality breaks down at the Planck scale. There is a fundamental length scale of the order of the Planck length (ℓp ∼ 10−35 m) that cannot be probed in a finite time. This reflects the fact that the spacetime manifold has a noncommutative, foamy structure at the very high energy l ...
Selected Topics in Teleparallel Gravity
... interaction in the lack of universality, that is, in the absence of the weak equivalence principle. As we are going to see, the answer to this question is positive: teleparallel gravity does not require the validity of the equivalence principle to describe the gravitational interaction. In fact, alt ...
... interaction in the lack of universality, that is, in the absence of the weak equivalence principle. As we are going to see, the answer to this question is positive: teleparallel gravity does not require the validity of the equivalence principle to describe the gravitational interaction. In fact, alt ...
How We May Be Free From Physics - Philsci
... alter his behavior in D because the physics of a pebble does not allow such intervention by the intellect. But if one asks how the physics of the pebble allows for the emergence of an ordinary intelligence, I would say it doesn't, and the carrier of this intelligence is most likely something non-phy ...
... alter his behavior in D because the physics of a pebble does not allow such intervention by the intellect. But if one asks how the physics of the pebble allows for the emergence of an ordinary intelligence, I would say it doesn't, and the carrier of this intelligence is most likely something non-phy ...
Quantum and Classical Coincidence Imaging
... this idea by forming a coincidence image of the diffraction pattern of a double slit using a classically correlated light source. Furthermore, we have argued that strong correlations between pairs of conjugate variables are a signature of nonclassical behavior, and we have derived a continuous-varia ...
... this idea by forming a coincidence image of the diffraction pattern of a double slit using a classically correlated light source. Furthermore, we have argued that strong correlations between pairs of conjugate variables are a signature of nonclassical behavior, and we have derived a continuous-varia ...
Chapter8.doc
... as 400 MHz. Because of the increased losses the power handling capability decreases at higher frequencies, therefore, at higher microwave frequencies, or where long runs make coax attenuation losses unacceptable, or where high power levels causes the coax to overheat, waveguides are used instead of ...
... as 400 MHz. Because of the increased losses the power handling capability decreases at higher frequencies, therefore, at higher microwave frequencies, or where long runs make coax attenuation losses unacceptable, or where high power levels causes the coax to overheat, waveguides are used instead of ...
Analogue gravity from field theory normal modes?
... physics, attitudes towards effective theories seem to be changing—they are now much more likely to be used, at least as computational tools. As long as one has a clear understanding of when to stop taking them seriously effective theories are perfectly good physics even if they are not ‘fundamental’ ...
... physics, attitudes towards effective theories seem to be changing—they are now much more likely to be used, at least as computational tools. As long as one has a clear understanding of when to stop taking them seriously effective theories are perfectly good physics even if they are not ‘fundamental’ ...
Quantum Computation with Neutral Atoms
... with this Hamiltonian, where the coupling strength Ω depends on the square root of the intensity, and φ is the phase of the laser field with respect to the atomic polarization. The effect of such a pulse is a rotation of the state vector on the Bloch sphere, where the poles represent the two states ...
... with this Hamiltonian, where the coupling strength Ω depends on the square root of the intensity, and φ is the phase of the laser field with respect to the atomic polarization. The effect of such a pulse is a rotation of the state vector on the Bloch sphere, where the poles represent the two states ...
What Is Quantum Information? - Quantum Theory Group at CMU
... ◦ Result is Sx = +1/2 or Sx = −1/2 (units of h̄) ◦ Measurement outcome (pointer position) provides 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 ...
... ◦ Result is Sx = +1/2 or Sx = −1/2 (units of h̄) ◦ Measurement outcome (pointer position) provides 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 ...
Evolving Notions of Security for Quantum Protocols
... [BCGST02] H. Barnum, C. Crepeau, D. Gottesman, A. Smith, A. Tapp, "Authentication of Quantum Messages," Proc. 43rd IEEE Symposium on the Foundations of Computer Science, 449-458 (2002), full version quant-ph/0205128. ...
... [BCGST02] H. Barnum, C. Crepeau, D. Gottesman, A. Smith, A. Tapp, "Authentication of Quantum Messages," Proc. 43rd IEEE Symposium on the Foundations of Computer Science, 449-458 (2002), full version quant-ph/0205128. ...
Bohr–Einstein debates
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered because of their importance to the philosophy of science. An account of the debates was written by Bohr in an article titled ""Discussions with Einsteinon Epistemological Problems in Atomic Physics"". Despite their differences of opinion regarding quantum mechanics, Bohr and Einstein had a mutual admiration that was to last the rest of their lives.The debates represent one of the highest points of scientific research in the first half of the twentieth century because it called attention to an element of quantum theory, quantum non-locality, which is absolutely central to our modern understanding of the physical world. The consensus view of professional physicists has been that Bohr proved victorious, and definitively established the fundamental probabilistic character of quantum measurement.