Spin Squeezing, Macrorealism and the Heisenberg uncertainty
... preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in their seminal paper [52], quantum mechanics predicts effects that are in explicit tension w ...
... preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in their seminal paper [52], quantum mechanics predicts effects that are in explicit tension w ...
PDF file - Comp Chem - University of Minnesota
... weaknesses. Some strengths of the adiabatic representation are that it is well defined, it lends itself well to using variational and perturbation theory methods to calculate it by electronic structure theory, it often provides a good zero-order picture when the coupling is neglected, and in principl ...
... weaknesses. Some strengths of the adiabatic representation are that it is well defined, it lends itself well to using variational and perturbation theory methods to calculate it by electronic structure theory, it often provides a good zero-order picture when the coupling is neglected, and in principl ...
Decoherence and open quantum systems
... Chapter 2. Basic concepts of quantum mechanics because they can not be distilled into a maximally entangled state. A region of bound entangled states in a two qutrit system is discussed in Sect.3.4. The Fig.2.1 shows a schematical picture of the PPT-criterion and its propositions for different dime ...
... Chapter 2. Basic concepts of quantum mechanics because they can not be distilled into a maximally entangled state. A region of bound entangled states in a two qutrit system is discussed in Sect.3.4. The Fig.2.1 shows a schematical picture of the PPT-criterion and its propositions for different dime ...
history of quantum computing
... “Computing devices resembling the universal quantum computer can, in principle, be built and would have many remarkable properties not reproducible by any Turing machine.” Pic: www.physics.ox.ac.uk/al/people/Deutsch.htm ...
... “Computing devices resembling the universal quantum computer can, in principle, be built and would have many remarkable properties not reproducible by any Turing machine.” Pic: www.physics.ox.ac.uk/al/people/Deutsch.htm ...
Quantum groups and integrable lattice models UMN Math Physics Seminar
... This operator (”R-matrix “) captures contributions of a single vertex to the partition function. Consider an (N + 1)-fold tensor product V0 ⊗ V1 ⊗ · · · ⊗ VN (Vi = V ) and let Rij be the operator acting on the Vi ⊗ Vj component of this product as R and as identity on any other Vl . ...
... This operator (”R-matrix “) captures contributions of a single vertex to the partition function. Consider an (N + 1)-fold tensor product V0 ⊗ V1 ⊗ · · · ⊗ VN (Vi = V ) and let Rij be the operator acting on the Vi ⊗ Vj component of this product as R and as identity on any other Vl . ...
The solution of the “constant term problem” and the ζ
... corresponding approximating metric graph with non-standard boundary conditions being not necessarily of the δ-type or δ 0 -type. The analysis of the Laplacian as the prime example and generic model system for a Schrödinger operator is very wide-reaching in the field of quantum chaos such as the anal ...
... corresponding approximating metric graph with non-standard boundary conditions being not necessarily of the δ-type or δ 0 -type. The analysis of the Laplacian as the prime example and generic model system for a Schrödinger operator is very wide-reaching in the field of quantum chaos such as the anal ...
Radiation I
... The course aims at providing quantitative training in basic physics concepts constituting the foundation for any advanced study of astrophysical phenomena. The course starts with a brief review of Maxwell equations and electromagnetic waves, then proceeds to a discussion of electromagnetic radiation ...
... The course aims at providing quantitative training in basic physics concepts constituting the foundation for any advanced study of astrophysical phenomena. The course starts with a brief review of Maxwell equations and electromagnetic waves, then proceeds to a discussion of electromagnetic radiation ...
Compendium of Theoretical Physics
... In the first chapter, Mechanics, we present the often overemphasized Newtonian approach to mechanics next to the Lagrange and Hamilton formulations. Each of these equivalent representations distinguishes itself by specific advantages: whereas Newton’s approach is most easily accessible using the conce ...
... In the first chapter, Mechanics, we present the often overemphasized Newtonian approach to mechanics next to the Lagrange and Hamilton formulations. Each of these equivalent representations distinguishes itself by specific advantages: whereas Newton’s approach is most easily accessible using the conce ...
Compiler Management of Communication and Parallelism for
... reliable computation. Accelerating quantum computation is important because it allows the computation to “stay ahead of the errors”. In this paper, we propose the Multi-SIMD(k,d) architecture for quantum computation. Multi-SIMD approaches combine operationlevel parallelism (with k different gates o ...
... reliable computation. Accelerating quantum computation is important because it allows the computation to “stay ahead of the errors”. In this paper, we propose the Multi-SIMD(k,d) architecture for quantum computation. Multi-SIMD approaches combine operationlevel parallelism (with k different gates o ...
Atoms, photons, and Information
... a laser. The most fundamental result derived is that a laser control pulse decoheres an atomic system it interacts with at the same rate as spontaneous emission into the modes occupied by the laser pulse. Thus use of laser controls to manipulate atoms does not increase the rate of decoherence experi ...
... a laser. The most fundamental result derived is that a laser control pulse decoheres an atomic system it interacts with at the same rate as spontaneous emission into the modes occupied by the laser pulse. Thus use of laser controls to manipulate atoms does not increase the rate of decoherence experi ...
PHOTONIC ENTANGLEMENT: NEW SOURCES AND NEW APPLICATIONS JI ˇ R´
... the last few decades. In order to be used in many different applications, sources of entanglement should satisfy several requirements as a high efficiency, broad tunability and compactness, and the possibility of integration with other optical components. The most common sources of entangled fields ...
... the last few decades. In order to be used in many different applications, sources of entanglement should satisfy several requirements as a high efficiency, broad tunability and compactness, and the possibility of integration with other optical components. The most common sources of entangled fields ...
Probability amplitude
In quantum mechanics, a probability amplitude is a complex number used in describing the behaviour of systems. The modulus squared of this quantity represents a probability or probability density.Probability amplitudes provide a relationship between the wave function (or, more generally, of a quantum state vector) of a system and the results of observations of that system, a link first proposed by Max Born. Interpretation of values of a wave function as the probability amplitude is a pillar of the Copenhagen interpretation of quantum mechanics. In fact, the properties of the space of wave functions were being used to make physical predictions (such as emissions from atoms being at certain discrete energies) before any physical interpretation of a particular function was offered. Born was awarded half of the 1954 Nobel Prize in Physics for this understanding (see #References), and the probability thus calculated is sometimes called the ""Born probability"". These probabilistic concepts, namely the probability density and quantum measurements, were vigorously contested at the time by the original physicists working on the theory, such as Schrödinger and Einstein. It is the source of the mysterious consequences and philosophical difficulties in the interpretations of quantum mechanics—topics that continue to be debated even today.