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Towards the mathematics of quantum field theory
Towards the mathematics of quantum field theory

... This book is an applied pure mathematics textbook on quantum field theory. Its aim is to introduce mathematicians (and, in particular, graduate students) to the mathematical methods of theoretical and experimental quantum field theory, with an emphasis on coordinate free presentations of the mathema ...
Quantum Orders and Symmetric Spin Liquids
Quantum Orders and Symmetric Spin Liquids

... classes of quantum states (described by complex ground state wave-functions) is much richer then classical orders that characterize universality classes of finite temperature classical states (described by positive probability distribution functions). The Landau’s theory for orders and phase transit ...
A review of Bell inequality tests with neutral kaons
A review of Bell inequality tests with neutral kaons

... of these experiments projects then each measured kaon into one of the two states of the chosen measurement basis. This is a common feature in Refs. 7) - 11) but care has to be taken when extrapolating these considerations to unstable systems such as neutral kaons 12) . Admittedly, this instability a ...
Generation of room-temperature entanglement in
Generation of room-temperature entanglement in

... I would like to start by thanking my supervisors, Prof. Ian Walmsley and Prof. Dieter Jaksch, who first provided me with the opportunity to contribute to such an interesting project — not many physics students can drop in on a dinner conversation and say “Me? I work with diamonds, but no... really, ...
Symmetry in Nature
Symmetry in Nature

... The two main types of symmetry arereflectiveandrotational. Reflective, or line, symmetry means that one half of an image is the mirror image of the other half (think of a butterfly's wings). Rotational symmetry means that the object or image can be turned around a center point and match itself some ...
Projections and correlations in the fractional quantum Hall effect
Projections and correlations in the fractional quantum Hall effect

... next Landau level, become available; at which time the plateau comes to an end. Subsequently the story repeats but this time with another set of edge states from En included and thus a higher conductivity and a lower resistance – those of the next plateau. In an increasing magnetic field an analogou ...
Double quantum dot as a spin rotator
Double quantum dot as a spin rotator

pdf
pdf

... In 2002, I searched for a graduate research advisor who was excited about the “tabletop” research they were doing and who smiled in their photographs. With Dave and Wolfgang, I found excitement and smiles twice over. I thank them for the opportunity to explore and experiment in their lab for the las ...
Introduction to String Theory
Introduction to String Theory

Effects of electric fields on ultracold Rydberg atom interactions
Effects of electric fields on ultracold Rydberg atom interactions

... the charge fluctuations produced are anisotropic, depending on the atomic states involved. The important fluctuations of the charge distributions almost always occur at frequencies such that the atoms are close enough to each other so the electric field does not have to propagate from one atom to th ...
Population Monte Carlo algorithms
Population Monte Carlo algorithms

Controlling electron quantum dot qubits by spin
Controlling electron quantum dot qubits by spin

Charge degrees of freedom on the kagome lattice
Charge degrees of freedom on the kagome lattice

... frustration of the interactions on the underlying lattices [FPS02]. Such geometrically frustrated systems are typically characterized by a high density of low-lying excitations, leading to various interesting physical effects. This thesis constitutes a study of a model of spinless fermions on the ge ...
Eigenmode decomposition of the near
Eigenmode decomposition of the near

Particle Physics and Inflationary Cosmology
Particle Physics and Inflationary Cosmology

Coupling ultracold atoms to mechanical oscillators
Coupling ultracold atoms to mechanical oscillators

... have been perfected to monitor position fluctuations with an imprecision down to the standard quantum limit [8, 9, 10, 11, 12, 13, 14]. Moreover, sophisticated techniques for cooling and coherent excitation of individual mechanical modes have been developed [8, 9, 12, 13, 15, 16], providing access t ...
Chapter 14: Phenomena Chapter 14 Covalent Bonding: Orbitals
Chapter 14: Phenomena Chapter 14 Covalent Bonding: Orbitals

What does it mean for half of an empty cavity to be full?
What does it mean for half of an empty cavity to be full?

imaging single-electron charging in nanostructures by low
imaging single-electron charging in nanostructures by low

- Philsci
- Philsci

... Next, from stage 4 to stage 5, an isothermal compression is performed, in which the total volume available to the particle (left hand side plus right hand side of the partition) returns to its original volume V, while the pressure on both sides becomes the same and equal to NkT/V (by the ideal gas l ...
Aspects of Symmetry Breaking in Grand Unified Theories
Aspects of Symmetry Breaking in Grand Unified Theories

Graphene - “most two-dimensional” system imaginable
Graphene - “most two-dimensional” system imaginable

... ‘Quantum electrodynamics (resulting from the merger of quantum mechanics and relativity theory) has provided a clear understanding of phenomena ranging from particle physics to cosmology and from astrophysics to quantum chemistry. The ideas underlying quantum electrodynamics also influence the theor ...
Zero Point Energy
Zero Point Energy

... are immersed in an energetic field. The existence of the zero point electromagnetic energy was discovered in 1958 by the Dutch physicist M. J. Sparnaay. Mr Sparnaay continued the experiments carried out by Hendrick B. G. Casimir in 1948 which showed the existence of a force between two uncharged pla ...
manipulating single atoms - Quantum technologies
manipulating single atoms - Quantum technologies

Quantum diffusion with disorder, noise and interaction
Quantum diffusion with disorder, noise and interaction

... we find exponents in the range 0.2 < αint < 0.35. A detailed description of the various regimes achievable in a quasi-periodic lattice can be found in [47]. 3.4. The generalized diffusion model When we introduce noise and interaction at the same time, we observe an expansion that is globally faster ...
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History of quantum field theory

In particle physics, the history of quantum field theory starts with its creation by Paul Dirac, when he attempted to quantize the electromagnetic field in the late 1920s. Major advances in the theory were made in the 1950s, and led to the introduction of quantum electrodynamics (QED). QED was so successful and ""natural"" that efforts were made to use the same basic concepts for the other forces of nature. These efforts were successful in the application of gauge theory to the strong nuclear force and weak nuclear force, producing the modern standard model of particle physics. Efforts to describe gravity using the same techniques have, to date, failed. The study of quantum field theory is alive and flourishing, as are applications of this method to many physical problems. It remains one of the most vital areas of theoretical physics today, providing a common language to many branches of physics.
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