New experimental limit on the Pauli exclusion principle violation by
... noncommutative spacetime. Of these (a) seems unlikely because the quon theory which obeys CPT allows violations, (b) seems likely because if locality is satisfied we can prove the spin-statistics connection and there will be no violations, (c), (d), (e) and (f) seem possible.. Hopefully either viola ...
... noncommutative spacetime. Of these (a) seems unlikely because the quon theory which obeys CPT allows violations, (b) seems likely because if locality is satisfied we can prove the spin-statistics connection and there will be no violations, (c), (d), (e) and (f) seem possible.. Hopefully either viola ...
Parity Violation in Chiral Molecules
... infrared spectroscopy goes back 30 years [49] and since that time a number of proposals were made and some experiments were carried out in the infrared [49–53], microwave [53] and γ-ray (Mössbauer) spectral ranges [54]. Experiments reached accuracies Δν/ν from 10–6 in 1976 to 10–14 recently [51][52] ...
... infrared spectroscopy goes back 30 years [49] and since that time a number of proposals were made and some experiments were carried out in the infrared [49–53], microwave [53] and γ-ray (Mössbauer) spectral ranges [54]. Experiments reached accuracies Δν/ν from 10–6 in 1976 to 10–14 recently [51][52] ...
Quantum Algorithms for Estimating Gauss Sums and Calculating
... physics allow us to process information in a more efficient way than is possible in the classical, Turing machine model of computation. Strong support for the claim that quantum computers are indeed more powerful than classical ones was given in 1994 by Peter Shor who proved the existence of efficie ...
... physics allow us to process information in a more efficient way than is possible in the classical, Turing machine model of computation. Strong support for the claim that quantum computers are indeed more powerful than classical ones was given in 1994 by Peter Shor who proved the existence of efficie ...
On quantum obfuscation - University of Maryland Institute for
... Definitions. Our main results concern definitions, applications, and (im)possibility of quantum obfuscation in the virtual black-box setting. We will begin by defining the following. 1. Quantum black-box obfuscator. This is a polynomial-time quantum algorithm O which accepts quantum circuits C as in ...
... Definitions. Our main results concern definitions, applications, and (im)possibility of quantum obfuscation in the virtual black-box setting. We will begin by defining the following. 1. Quantum black-box obfuscator. This is a polynomial-time quantum algorithm O which accepts quantum circuits C as in ...
Department of Physics, Chemistry and Biology Master’s Thesis
... last decades the appearance of nonlinear models has become more common. How nonlinearity appears in a physical model is an interesting aspect that depends on how much we want to know about the system. Quantum mechanics and nonlinear science are cornerstones of modern physics and have provided a deep ...
... last decades the appearance of nonlinear models has become more common. How nonlinearity appears in a physical model is an interesting aspect that depends on how much we want to know about the system. Quantum mechanics and nonlinear science are cornerstones of modern physics and have provided a deep ...
Transformations of Entangled Mixed States of Two Qubits
... quantum correlations. Especially, it started with the criticism of Einstein, Podolsky, and Rosen on the Copenhagen interpretation of quantum mechanics[1] in 1935. In 1964, J. S. Bell has shown that entangled states violate some inequalities, which are called as Bell inequalities, which test the non- ...
... quantum correlations. Especially, it started with the criticism of Einstein, Podolsky, and Rosen on the Copenhagen interpretation of quantum mechanics[1] in 1935. In 1964, J. S. Bell has shown that entangled states violate some inequalities, which are called as Bell inequalities, which test the non- ...
Slide 1
... Quantum Mechanics Two big issues: 1. All particles can be described both as particles AND waves – Saw this for photons – True for electrons (and protons etc.) also! 2. In atoms: Electrons can ONLY be in one of the available energy states, and at certain distances from the nucleus – Keep atoms from ...
... Quantum Mechanics Two big issues: 1. All particles can be described both as particles AND waves – Saw this for photons – True for electrons (and protons etc.) also! 2. In atoms: Electrons can ONLY be in one of the available energy states, and at certain distances from the nucleus – Keep atoms from ...
entangled photon pairs: efficient generation and detection, and bit
... either β or β 0 polarization. Alice and Bob record the measurement outcomes using single photon detectors D1 and D2 respectively. The arrival times of each detector’s click is recorded by a time stamp unit. From this data, coincidences between Alice and Bob are extracted (Coinc). At the same time th ...
... either β or β 0 polarization. Alice and Bob record the measurement outcomes using single photon detectors D1 and D2 respectively. The arrival times of each detector’s click is recorded by a time stamp unit. From this data, coincidences between Alice and Bob are extracted (Coinc). At the same time th ...
Unusual ordered phases of highly frustrated magnets: a review
... Kawamura and Miyashita in 1985, Ref. 26, continues to attract much attention - and in fact remains not fully understood. Figure 3 shows the result of recent simulations28 , which studied critical properties of various phase transitions in great detail. Th obtained phase diagram differs in one import ...
... Kawamura and Miyashita in 1985, Ref. 26, continues to attract much attention - and in fact remains not fully understood. Figure 3 shows the result of recent simulations28 , which studied critical properties of various phase transitions in great detail. Th obtained phase diagram differs in one import ...
Algebraic Quantum Field Theory on Curved Spacetimes
... Definition 2.1 A Cauchy surface is a closed achronal set Σ ⊂ M with D(Σ, M) = M. A spacetime (M, g) is called globally hyperbolic if it contains a Cauchy surface. Although the geometric intuition sourced by our knowledge of Minkowski spacetime can fail us in general Lorentzian spacetimes, it is esse ...
... Definition 2.1 A Cauchy surface is a closed achronal set Σ ⊂ M with D(Σ, M) = M. A spacetime (M, g) is called globally hyperbolic if it contains a Cauchy surface. Although the geometric intuition sourced by our knowledge of Minkowski spacetime can fail us in general Lorentzian spacetimes, it is esse ...
Qualitative individuation in permutation
... But a consequence of the physical emptiness of the factor Hilbert space labels is that we cannot read facts about a physical state so readily off the mathematical form of the state-vector used to represent it. Instead we need to look at the algebra of admissible operators, which is greatly restrict ...
... But a consequence of the physical emptiness of the factor Hilbert space labels is that we cannot read facts about a physical state so readily off the mathematical form of the state-vector used to represent it. Instead we need to look at the algebra of admissible operators, which is greatly restrict ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: