Quantum critical point and spin fluctuations in the lower
... Fe2+ ions can dramatically alter the physical and chemical properties of (Mg,Fe)O in the deep mantle, thereby changing our understanding of the Earth’s deep interior. To establish a fundamental understanding of the ground electronic state of iron, the electronic and magnetic states of Fe2+ in (Mg0.7 ...
... Fe2+ ions can dramatically alter the physical and chemical properties of (Mg,Fe)O in the deep mantle, thereby changing our understanding of the Earth’s deep interior. To establish a fundamental understanding of the ground electronic state of iron, the electronic and magnetic states of Fe2+ in (Mg0.7 ...
Multipartite entanglement of hot trapped ions
... where jgg · · · el and jee · · · el (N terms) are product states describing N ions which are all in the (same) internal state g or e. The unique correlation between different particles in such an entangled state is a significant nonclassical feature of quantum mechanics. Entangled states with two pa ...
... where jgg · · · el and jee · · · el (N terms) are product states describing N ions which are all in the (same) internal state g or e. The unique correlation between different particles in such an entangled state is a significant nonclassical feature of quantum mechanics. Entangled states with two pa ...
Decoherence - Center for Ultracold Atoms
... In the photon scattering experiment, decoherence depends on quantum entanglement between an atom (which is referred to as the “system”) and the final momentum of the scattered photons (which collectively constitute the “environment”). In a second experiment, we replaced the random process of photon ...
... In the photon scattering experiment, decoherence depends on quantum entanglement between an atom (which is referred to as the “system”) and the final momentum of the scattered photons (which collectively constitute the “environment”). In a second experiment, we replaced the random process of photon ...
(Total Four Semesters, 100 marks in each Paper followed by
... Planck method, partition function and statistical definition of thermodynamic quantities, computation of partition functions of some standard systems. Unit-II Statistical Properties System of linear harmonic oscillators in the canonical ensemble; grand canonical ensemble and its partition function; ...
... Planck method, partition function and statistical definition of thermodynamic quantities, computation of partition functions of some standard systems. Unit-II Statistical Properties System of linear harmonic oscillators in the canonical ensemble; grand canonical ensemble and its partition function; ...
Operator Quantum Error Correction.
... map will also be noiseless for any other map whose Kraus operators are linear combinations of the Kraus operators of the original map. Hence, for the purpose of noiseless encoding, any map whose Kraus operators span is closed under conjugation is equivalent to a unital map. The mathematical framewor ...
... map will also be noiseless for any other map whose Kraus operators are linear combinations of the Kraus operators of the original map. Hence, for the purpose of noiseless encoding, any map whose Kraus operators span is closed under conjugation is equivalent to a unital map. The mathematical framewor ...
GRAVITY QUANTUM FOAM IN-FLOW
... believes the light travelled (2∆l0 ) divided by the travel time according to the accompanying clock (∆tR ), namely 2∆l0 /∆tR = c. So the speed vR of the observer through the quantum foam is not revealed by this procedure, and the observer is erroneously led to the conclusion that the speed of light ...
... believes the light travelled (2∆l0 ) divided by the travel time according to the accompanying clock (∆tR ), namely 2∆l0 /∆tR = c. So the speed vR of the observer through the quantum foam is not revealed by this procedure, and the observer is erroneously led to the conclusion that the speed of light ...
Partially Nondestructive Continuous Detection of Individual Traveling Optical Photons
... the probability εid ¼ 1=4 in the presence of a signal photon, indicated in the figure as a dashed line. Achieving this limit requires a strong single-atom-cavity coupling (cooperativity η ≫ 1) [27], large ensemble optical depth inside the cavity region D ≫ 1, and sufficiently slowly traveling signal ...
... the probability εid ¼ 1=4 in the presence of a signal photon, indicated in the figure as a dashed line. Achieving this limit requires a strong single-atom-cavity coupling (cooperativity η ≫ 1) [27], large ensemble optical depth inside the cavity region D ≫ 1, and sufficiently slowly traveling signal ...
Two-particle quantum interference in tunnel
... values differ by 6s (18): APdist ¼ 0:282ð12Þ and AP11 ¼ 0:46ð2Þ. A full treatment of the observed P11 ðtÞ must also consider potential effects of interactions between the atoms. In many experiments with atoms in optical lattices, the on-site interaction energy U is the dominant scale (19, 24); howev ...
... values differ by 6s (18): APdist ¼ 0:282ð12Þ and AP11 ¼ 0:46ð2Þ. A full treatment of the observed P11 ðtÞ must also consider potential effects of interactions between the atoms. In many experiments with atoms in optical lattices, the on-site interaction energy U is the dominant scale (19, 24); howev ...
Chapter 5
... entirely new topics (e.g., delayed-‐choice experiments) that created additional opportunities for students to explore the sometimes fluid boundaries between scientific interpretation and theory. The entiret ...
... entirely new topics (e.g., delayed-‐choice experiments) that created additional opportunities for students to explore the sometimes fluid boundaries between scientific interpretation and theory. The entiret ...
Electronic Structure of Strained GaSb/GaAs Quantum Dot
... detail included in the model. Within the tight-binding model, the atomistic detail is limited to a small basis set, while in the pseudopotential model the feature of wave functions is described with a large basis set. Therefore the tight-binding model is computationally less costly than the pseudopo ...
... detail included in the model. Within the tight-binding model, the atomistic detail is limited to a small basis set, while in the pseudopotential model the feature of wave functions is described with a large basis set. Therefore the tight-binding model is computationally less costly than the pseudopo ...
Black hole fireworks: quantum-gravity effects outside the horizon
... ric we find is locally isometric to the Kruskal solution (outside the quantum region), but it is not a portion of the Kruskal solution. Rather, it is a portion of a double cover of the Kruskal solution, in the sense that there are distinct regions isomorphic to the same Kruskal region. This is expla ...
... ric we find is locally isometric to the Kruskal solution (outside the quantum region), but it is not a portion of the Kruskal solution. Rather, it is a portion of a double cover of the Kruskal solution, in the sense that there are distinct regions isomorphic to the same Kruskal region. This is expla ...
Non-classical light and photon statistics
... effect explained with light quanta (Planck, Einstein). • 1920s – wave-particle duality: Quantum mechanics developed (Bohr, Heisenberg, de Broglie…), light and matter have both wave and particle properties. • 1920s-50s – photons: Quantum field theories developed (Dirac, Feynman), electromagnetic fiel ...
... effect explained with light quanta (Planck, Einstein). • 1920s – wave-particle duality: Quantum mechanics developed (Bohr, Heisenberg, de Broglie…), light and matter have both wave and particle properties. • 1920s-50s – photons: Quantum field theories developed (Dirac, Feynman), electromagnetic fiel ...
A Study on Reversible Logic Gates of Quantum Computing
... logic gates acting on some binary (i.e., bit string) input. Each logic gate transforms its input bits into one or more output bits in some deterministic fashion according to the definition of the gate. The classical computation is being performed using Boolean logic which uses variables 0 and 1[1].T ...
... logic gates acting on some binary (i.e., bit string) input. Each logic gate transforms its input bits into one or more output bits in some deterministic fashion according to the definition of the gate. The classical computation is being performed using Boolean logic which uses variables 0 and 1[1].T ...
Do quantum strategies always win?
... algorithm in the entangled quantum penny flip problem. In recent years a move to distinguish between the application of quantum mechanics to game theory known as “quantized games” and the introduction of game theory to quantum mechanics known as “gaming the quantum” has also been made. Reference [11 ...
... algorithm in the entangled quantum penny flip problem. In recent years a move to distinguish between the application of quantum mechanics to game theory known as “quantized games” and the introduction of game theory to quantum mechanics known as “gaming the quantum” has also been made. Reference [11 ...
ABSTRACT PHOTON PAIR PRODUCTION FROM A HOT ATOMIC ENSEMBLE IN THE DIAMOND CONFIGURATION
... possible advantage of our work is that the generation medium we use is technically very simple compared to a cold atom system. This simplification, of course, comes with some disadvantages as well which we will discuss. ...
... possible advantage of our work is that the generation medium we use is technically very simple compared to a cold atom system. This simplification, of course, comes with some disadvantages as well which we will discuss. ...
Two-magnon instabilities and other surprises in magnetized quantum antiferromagnets Oleg Starykh
... hcl < h < hc2the equivalence of two of the sublattices is retained, but the symsummation is performed over pairs of nearest neighbours. In the case of a flat triangular in the direction perpendicular to the field becomes broken (figure 3(c)). That lattice (and this is the case we are interested in) ...
... hcl < h < hc2the equivalence of two of the sublattices is retained, but the symsummation is performed over pairs of nearest neighbours. In the case of a flat triangular in the direction perpendicular to the field becomes broken (figure 3(c)). That lattice (and this is the case we are interested in) ...
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: