Nonadiabatic alignment by intense pulses
... thoroughly reviewed in the early literature.34,35 A brief discussion of strong field effects in RCS, as well as a comprehensive list of references, are included in the recent review article 3. An early but certainly not outdated review of coherent states is provided in Ref. 36. Finally, the more gen ...
... thoroughly reviewed in the early literature.34,35 A brief discussion of strong field effects in RCS, as well as a comprehensive list of references, are included in the recent review article 3. An early but certainly not outdated review of coherent states is provided in Ref. 36. Finally, the more gen ...
Spin Foam Models of Quantum Spacetime
... spin networks, graphs whose edges are labelled with representations of some given group, while their histories, i.e. possible (spacetime) 4-geometries, are spin foams, 2-complexes with faces labelled by representations of the same group. The models are then characterized by an assignment of probabil ...
... spin networks, graphs whose edges are labelled with representations of some given group, while their histories, i.e. possible (spacetime) 4-geometries, are spin foams, 2-complexes with faces labelled by representations of the same group. The models are then characterized by an assignment of probabil ...
Quantum Computing
... This is the remarkable thing about entanglement. By measuring one qubit we can affect the probability amplitudes of the other qubits in a system! How to think about this process in an abstract way is an open challenge in quantum computing. The difficulty is the lack of any classical analog. One usef ...
... This is the remarkable thing about entanglement. By measuring one qubit we can affect the probability amplitudes of the other qubits in a system! How to think about this process in an abstract way is an open challenge in quantum computing. The difficulty is the lack of any classical analog. One usef ...
Quantum Computer (Information) and Quantum Mechanical
... beings can perceive, this quantum mechanical behavior is normally hidden (not perceived-e(e)) by us. That it is not in the visible field; We cannot see it let alone decipher the progressive movements and dynamics of the system. Yet, if we were to look into the world of individual atoms, we would fin ...
... beings can perceive, this quantum mechanical behavior is normally hidden (not perceived-e(e)) by us. That it is not in the visible field; We cannot see it let alone decipher the progressive movements and dynamics of the system. Yet, if we were to look into the world of individual atoms, we would fin ...
Information measures, entanglement and quantum evolution Claudia Zander
... quantum information theory [21]. It also constitutes a rather useful heuristic tool for establishing new links between, or obtaining new derivations of, fundamental aspects of thermodynamics and other areas of physics [22]. Information is something that is encoded in a physical state of a system an ...
... quantum information theory [21]. It also constitutes a rather useful heuristic tool for establishing new links between, or obtaining new derivations of, fundamental aspects of thermodynamics and other areas of physics [22]. Information is something that is encoded in a physical state of a system an ...
Quantum Theory, Groups and Representations: An Introduction (under construction) Peter Woit
... 21.2 Normal-ordering and the choice of complex structure . . . . . . . 235 21.3 For further reading . . . . . . . . . . . . . . . . . . . . . . . . . . 239 22 The Harmonic Oscillator as a Representation of U (d) 22.1 The metaplectic representation for d degrees of freedom 22.2 Examples in d = 2 and ...
... 21.2 Normal-ordering and the choice of complex structure . . . . . . . 235 21.3 For further reading . . . . . . . . . . . . . . . . . . . . . . . . . . 239 22 The Harmonic Oscillator as a Representation of U (d) 22.1 The metaplectic representation for d degrees of freedom 22.2 Examples in d = 2 and ...
Manipulation and Simulation of Cold Atoms in
... information processing. There exists both a good understanding of the microscopic dynamics in these systems, and extensive control over those dynamics via external fields. In this thesis two primary issues are addressed. The first is the manipulation of atoms in optical lattice to achieve two goals: ...
... information processing. There exists both a good understanding of the microscopic dynamics in these systems, and extensive control over those dynamics via external fields. In this thesis two primary issues are addressed. The first is the manipulation of atoms in optical lattice to achieve two goals: ...
Completeness and the zx-calculus
... In this thesis, I consider the zx-calculus, a graphical language for pure state qubit quantum mechanics. I show that it is complete for pure state stabilizer quantum mechanics, so any problem within this fragment of quantum theory can be fully analysed using graphical methods. This includes question ...
... In this thesis, I consider the zx-calculus, a graphical language for pure state qubit quantum mechanics. I show that it is complete for pure state stabilizer quantum mechanics, so any problem within this fragment of quantum theory can be fully analysed using graphical methods. This includes question ...
What does it mean for half of an empty cavity to be full?
... (Received 26 September 2014; published 14 January 2015) ...
... (Received 26 September 2014; published 14 January 2015) ...
Quantum gauge theory simulation with ultracold atoms
... system that can be reshaped and adjusted to mimic the behaviour of other many-body systems: ultracold atomic gases in optical lattices act as genuine quantum simulators. The understanding of gauge theories is essential for the description of the fundamental interactions of our physical world. In par ...
... system that can be reshaped and adjusted to mimic the behaviour of other many-body systems: ultracold atomic gases in optical lattices act as genuine quantum simulators. The understanding of gauge theories is essential for the description of the fundamental interactions of our physical world. In par ...
Niels Bohr as philosopher of experiment: Does
... 1982, 2003), a number of physicists have suggested that Bohr's musings about the primacy of classical concepts, and by extension his doctrine of an (ostensibly) fundamental quantum–classical divide, amount to little more than superfluous semantic or philosophical baggage, much of which has been discr ...
... 1982, 2003), a number of physicists have suggested that Bohr's musings about the primacy of classical concepts, and by extension his doctrine of an (ostensibly) fundamental quantum–classical divide, amount to little more than superfluous semantic or philosophical baggage, much of which has been discr ...
Characterizing and witnessing multipartite correlations: from nonlocality to contextuality PhD thesis
... search for an operational meaning behind its mathematical formulation, and that a better understanding of quantum physics is essential for identifying the limitations and possibilities of the theory for information processing. An intriguing property of quantum theory is its intrinsic randomness. Ind ...
... search for an operational meaning behind its mathematical formulation, and that a better understanding of quantum physics is essential for identifying the limitations and possibilities of the theory for information processing. An intriguing property of quantum theory is its intrinsic randomness. Ind ...
A WYSIWYG Simulation Tool for Investigating the Circuit Model of
... Einstein himself once said “Quantum theory is non-intuitive and defies common sense”, cited by [28]. Quantum mechanics is such a large field that no definition fits perfectly and we often refer to ‘quantum physics’, ‘quantum mechanics’ and ‘quantum theory’ either interchangeably or when referring to ...
... Einstein himself once said “Quantum theory is non-intuitive and defies common sense”, cited by [28]. Quantum mechanics is such a large field that no definition fits perfectly and we often refer to ‘quantum physics’, ‘quantum mechanics’ and ‘quantum theory’ either interchangeably or when referring to ...
Universal emergence of the one-third plateau
... which we report in this work, has not been explored. Our main result, based on exact diagonalization 共ED兲, DMRG, classical Monte Carlo simulations 共MC兲, and spin-wave theory, is that the M = 1 / 3 plateau is realized in frustrated quantum spin chains with S ⬎ 1 / 2 in the case of isotropic exchange ...
... which we report in this work, has not been explored. Our main result, based on exact diagonalization 共ED兲, DMRG, classical Monte Carlo simulations 共MC兲, and spin-wave theory, is that the M = 1 / 3 plateau is realized in frustrated quantum spin chains with S ⬎ 1 / 2 in the case of isotropic exchange ...
Cavity optomechanics - Institute for Theoretical Physics II
... Nichols and Hull, 1901). A careful analysis of these experiments was required to distinguish the phenomenon from thermal effects that had dominated earlier observations. As early as 1909, Einstein derived the statistics of the radiationpressure force fluctuations acting on a movable mirror (Einstein ...
... Nichols and Hull, 1901). A careful analysis of these experiments was required to distinguish the phenomenon from thermal effects that had dominated earlier observations. As early as 1909, Einstein derived the statistics of the radiationpressure force fluctuations acting on a movable mirror (Einstein ...
Interconnection Networks for Scalable Quantum Computers
... to require all-to-all communication during some portion of their execution. For example, the Quantum Fourier Transform (QFT) [21], a component of Shor’s factorization algorithm [25], requires all-to-all communication. Third, the routing of qubits must be timed to coincide with the arrival of opcodes ...
... to require all-to-all communication during some portion of their execution. For example, the Quantum Fourier Transform (QFT) [21], a component of Shor’s factorization algorithm [25], requires all-to-all communication. Third, the routing of qubits must be timed to coincide with the arrival of opcodes ...
1. von Neumann Versus Shannon Entropy
... Of course, this density matrix applies only so long as we have not looked to see what measurement outcome has actually been realised. If we did that we would necessarily find just one of the states, q i , to which we would then assign an entropy of zero. The density matrix (3.2.5.2) does, however, a ...
... Of course, this density matrix applies only so long as we have not looked to see what measurement outcome has actually been realised. If we did that we would necessarily find just one of the states, q i , to which we would then assign an entropy of zero. The density matrix (3.2.5.2) does, however, a ...
Genuine Fortuitousness
... an objective fact about the universe and must be treated as such. Copenhagen’s treatment of uncertainty stands in stark contrast to “hidden variable” theories, a series of other QM theories like Bohmian mechanics which treat uncertainty as the result of some unknown variable that has not been accoun ...
... an objective fact about the universe and must be treated as such. Copenhagen’s treatment of uncertainty stands in stark contrast to “hidden variable” theories, a series of other QM theories like Bohmian mechanics which treat uncertainty as the result of some unknown variable that has not been accoun ...