Real-time evolution for weak interaction quenches in quantum systems
... the same holds for any time average. Hence quantum systems are never ergodic in a classical sense. This limitation does not apply for the expectation value of a particular observable. Nonetheless, the equilibration of expectation values in an integrable system is restricted for a different reason: A ...
... the same holds for any time average. Hence quantum systems are never ergodic in a classical sense. This limitation does not apply for the expectation value of a particular observable. Nonetheless, the equilibration of expectation values in an integrable system is restricted for a different reason: A ...
CONCEPTUAL FOUNDATIONS OF THE UNI- FIED THEORY OF WEAK AND ELECTROMAG-
... [24] so I was not too enthusiastic about it. [25] Of course, if I did not insert the Q-AI mass term in the Lagrangian, then the theory would be gauge invariant and renormalizable, and the Al would be massive. But then there would be no pions and the Q mesons would be massless, in obvious contradicti ...
... [24] so I was not too enthusiastic about it. [25] Of course, if I did not insert the Q-AI mass term in the Lagrangian, then the theory would be gauge invariant and renormalizable, and the Al would be massive. But then there would be no pions and the Q mesons would be massless, in obvious contradicti ...
Simple Nature
... definition was just plain silly, then here’s a more subtle example of a wrong definition of mass. Suppose we define it using a bathroom scale, or a more precise device such as a postal scale that works on the same principle of using gravity to compress or twist a spring. The trouble is that gravity ...
... definition was just plain silly, then here’s a more subtle example of a wrong definition of mass. Suppose we define it using a bathroom scale, or a more precise device such as a postal scale that works on the same principle of using gravity to compress or twist a spring. The trouble is that gravity ...
Experiments with Entangled Photons Bell Inequalities, Non-local Games and Bound Entanglement
... incomplete [2]. This thought experiment, using initials of the authors, is now known as the EPR paradox. Since then, the EPR paradox has raised many debates and divided the scientific community into two groups, one who believed (and still believes) that quantum mechanics is indeed incomplete and the ...
... incomplete [2]. This thought experiment, using initials of the authors, is now known as the EPR paradox. Since then, the EPR paradox has raised many debates and divided the scientific community into two groups, one who believed (and still believes) that quantum mechanics is indeed incomplete and the ...
Applied Bohmian mechanics
... the quantum territory is very helpful when facing a particular quantum problem. However, there are routes that do not appear usually in the guides. One of these unexplained routes is Bohmian mechanics2 . The Bohmian formalism was proposed by Louis de Broglie [12,13] even before the Copenhagen explan ...
... the quantum territory is very helpful when facing a particular quantum problem. However, there are routes that do not appear usually in the guides. One of these unexplained routes is Bohmian mechanics2 . The Bohmian formalism was proposed by Louis de Broglie [12,13] even before the Copenhagen explan ...
Chapter 3 QUANTUM MONTE CARLO SIMULATION
... operators is a very high price to pay in exchange for 'realism' ". The discussion about the locality of scattering goes far beyond the scope of this simple work, but we want to stress that within our approach, local scattering mechanism can also be 'naturally' implemented. In any case, other authors ...
... operators is a very high price to pay in exchange for 'realism' ". The discussion about the locality of scattering goes far beyond the scope of this simple work, but we want to stress that within our approach, local scattering mechanism can also be 'naturally' implemented. In any case, other authors ...
Notes on Semiclassical Gravity
... (gravitons) in a classical background metric? In our opinion, it is not, because no one has yet obtained such an approximation to quantum gravity. Thus the limit “quantum fields in curved space” is not the same as “gravitons in curved space.” The easiest way of having gravitons in a classical backgr ...
... (gravitons) in a classical background metric? In our opinion, it is not, because no one has yet obtained such an approximation to quantum gravity. Thus the limit “quantum fields in curved space” is not the same as “gravitons in curved space.” The easiest way of having gravitons in a classical backgr ...
Lecture 18 — October 26, 2015 1 Overview 2 Quantum Entropy
... and this is the reason that conditional quantum entropy can be negative. This is in fact the same observation that Schrödinger made concerning entangled states: “When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known ...
... and this is the reason that conditional quantum entropy can be negative. This is in fact the same observation that Schrödinger made concerning entangled states: “When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known ...
Physicalism and the Part-Whole Relation
... system, we can distinguish the state of the system, its constants, and its temporal evolution. Some quantities of a physical system are constant; others vary with time. In the case of a single classical particle, we can distinguish position and momentum as changing quantities, whereas mass remains c ...
... system, we can distinguish the state of the system, its constants, and its temporal evolution. Some quantities of a physical system are constant; others vary with time. In the case of a single classical particle, we can distinguish position and momentum as changing quantities, whereas mass remains c ...
Measurement Models for Quantum Zeno and anti
... and more evident that the formalism describes some general properties of Nature. Despite this success of quantum theory, there is still no consensus about its interpretation. The main problems center around the notions of “observation” and “measurement”. The problem of the “classical limit” is at th ...
... and more evident that the formalism describes some general properties of Nature. Despite this success of quantum theory, there is still no consensus about its interpretation. The main problems center around the notions of “observation” and “measurement”. The problem of the “classical limit” is at th ...
Quantum field theory in de Sitter spacetime
... In the next chapter, we study the quantum field theory in flat spacetime as a preface to more rigorous study of quantum field theory in curved spacetime. This includes the canonical quantization of the field in the Heisenberg picture. We present the quantization in two different basis, one being the ...
... In the next chapter, we study the quantum field theory in flat spacetime as a preface to more rigorous study of quantum field theory in curved spacetime. This includes the canonical quantization of the field in the Heisenberg picture. We present the quantization in two different basis, one being the ...
Black Hole Paradoxes Mario Rabinowitz Armor
... for the creation of black holes from stellar evolution -- causing a rift between him and his mentor Arthur Eddington, who didn’t believe stars could collapse and become black holes. Chandrasekar showed that black holes were the final destiny of all stars with mass ≥ 1.4 Msun. That is why all white d ...
... for the creation of black holes from stellar evolution -- causing a rift between him and his mentor Arthur Eddington, who didn’t believe stars could collapse and become black holes. Chandrasekar showed that black holes were the final destiny of all stars with mass ≥ 1.4 Msun. That is why all white d ...
Document
... The optical potentials for cold atoms we know, such as optical traps or optical lattices, are based on second-order AC Stark shifts of an electronic atomic level, which is proportional to the light intensity varying in space. For light in the far field, i.e. for optical trapping far away from surfac ...
... The optical potentials for cold atoms we know, such as optical traps or optical lattices, are based on second-order AC Stark shifts of an electronic atomic level, which is proportional to the light intensity varying in space. For light in the far field, i.e. for optical trapping far away from surfac ...
DEVELOPMENT, IMPLEMENTATION AND APPLICATION OF ELECTRONIC STRUCTURAL DESCRIPTORS TO THE
... At the outset of the 21st century, theoretical and computational chemistry has arrived at a position of central importance in chemistry.1 The algorithms of calculation are being improved, making calculations that were prohibitive feasible and with accuracies sometimes competing with experimental one ...
... At the outset of the 21st century, theoretical and computational chemistry has arrived at a position of central importance in chemistry.1 The algorithms of calculation are being improved, making calculations that were prohibitive feasible and with accuracies sometimes competing with experimental one ...
Comparison of Theory and Experiment for a One
... the cooperativity parameter C1 = 1/N0 ≃ 12. Among other relevant features illustrated in Fig. 2 is the quenching of the laser emission around I3 ≃ 6.5, presumably due to an Autler-Townes splitting of the excited state e3 at high ...
... the cooperativity parameter C1 = 1/N0 ≃ 12. Among other relevant features illustrated in Fig. 2 is the quenching of the laser emission around I3 ≃ 6.5, presumably due to an Autler-Townes splitting of the excited state e3 at high ...
Landau-Zener-Stückelberg-Majorana lasing in circuit quantum
... crease of the power transmission is accompanied by significant bandwidth narrowing of the resonance curve and a slight shift of the resonance frequency. The measured normalized power transmission spectra for driving amplitudes corresponding to the transmission maxima at zero bias are shown in Fig. 1 ...
... crease of the power transmission is accompanied by significant bandwidth narrowing of the resonance curve and a slight shift of the resonance frequency. The measured normalized power transmission spectra for driving amplitudes corresponding to the transmission maxima at zero bias are shown in Fig. 1 ...
Phys. Chem. Chem. Phys. 14, 9411-20
... as qubits, and are manipulated and read-out by an NMR spectrometer.24 Although the NMR system may be limited to only few tens of qubits, it has produced a wealth of information and provided a testing platform for experimental realizations of many proposed schemes.25,26 Quantum linear optics. This i ...
... as qubits, and are manipulated and read-out by an NMR spectrometer.24 Although the NMR system may be limited to only few tens of qubits, it has produced a wealth of information and provided a testing platform for experimental realizations of many proposed schemes.25,26 Quantum linear optics. This i ...
... chips rapidly decreases. Once the size of individual elements reach a certain critical level, their behavior and properties are no longer governed by classical physics, but rather by quantum mechanics. Another motivation was put forward by Richard P. Feynman [Feynman, 1982], who was among the first ...