Ph.D. thesis - Chin Lab at the University of Chicago
... trust. Cheng, I cannot thank you enough. The margin here is too narrow for writing. I thank Prof. Nathan Gemelke, who spent three years and three months working as my postdoc. I always enjoyed the numerous “small talks” when Nate entered the lab and started telling us about a new device, a novel tec ...
... trust. Cheng, I cannot thank you enough. The margin here is too narrow for writing. I thank Prof. Nathan Gemelke, who spent three years and three months working as my postdoc. I always enjoyed the numerous “small talks” when Nate entered the lab and started telling us about a new device, a novel tec ...
Noise and Decoherence in Quantum Two-Level Systems
... contribute, however, to dephasing since it leads to fluctuations of the eigenenergies and, thus, to a random relative phase between the two eigenstates. This is the origin of the contribution to the “pure” dephasing rate Γ∗ϕ (12), which is proportional to cos2 θ. Relaxation and pure dephasing contrib ...
... contribute, however, to dephasing since it leads to fluctuations of the eigenenergies and, thus, to a random relative phase between the two eigenstates. This is the origin of the contribution to the “pure” dephasing rate Γ∗ϕ (12), which is proportional to cos2 θ. Relaxation and pure dephasing contrib ...
Aalborg Universitet Quantum Organizational World-Making through Material Emobided Storytelling Practices
... the world is made passive and immutable, a static entity waiting for significance and to be completed by an external force like culture or history (Barad 2003: 821, Ingold 2012: 434-435). The practice turn is composed by many different traditions and is approached from many different philosophical o ...
... the world is made passive and immutable, a static entity waiting for significance and to be completed by an external force like culture or history (Barad 2003: 821, Ingold 2012: 434-435). The practice turn is composed by many different traditions and is approached from many different philosophical o ...
Through scattering theory with gun and camera: Coping with conventions
... courses. It is necessary to choose a zero of energy, and it is possible to multiply the wave function by an overall global phase factor, and that’s about it. Continuum-state quantum mechanics, by contrast, presents four options—all of which, as we shall show, are of great consequence. This paper has ...
... courses. It is necessary to choose a zero of energy, and it is possible to multiply the wave function by an overall global phase factor, and that’s about it. Continuum-state quantum mechanics, by contrast, presents four options—all of which, as we shall show, are of great consequence. This paper has ...
PT-symmetric quantum mechanics
... eigenfunctions of the operator PT when e >0. However, when e ,0, the PT symmetry of the Hamiltonian is spontaneously broken; even though PT commutes with H, the eigenfunctions of H are not all simultaneously eigenfunctions of PT. For these eigenfunctions of H the energies are complex. Thus, a transi ...
... eigenfunctions of the operator PT when e >0. However, when e ,0, the PT symmetry of the Hamiltonian is spontaneously broken; even though PT commutes with H, the eigenfunctions of H are not all simultaneously eigenfunctions of PT. For these eigenfunctions of H the energies are complex. Thus, a transi ...
Exotic path integrals and dualities
... the area of geometry. The canonical example is of course general relativity, which is an entirely geometric theory. However, quantum field theory provided a slight kink in this marriage, as the path integral of quantum field theory cannot be described rigorously using existing techniques, although b ...
... the area of geometry. The canonical example is of course general relativity, which is an entirely geometric theory. However, quantum field theory provided a slight kink in this marriage, as the path integral of quantum field theory cannot be described rigorously using existing techniques, although b ...
Quantum many-body systems exactly solved by special functions
... one dimension exactly solved by special functions: firstly, systems with interactions localised at points and solved by the (coordinate) Bethe ansatz; secondly, systems of Calogero-Sutherland type, as well as certain recently introduced deformations thereof, with eigenfunctions given by natural many ...
... one dimension exactly solved by special functions: firstly, systems with interactions localised at points and solved by the (coordinate) Bethe ansatz; secondly, systems of Calogero-Sutherland type, as well as certain recently introduced deformations thereof, with eigenfunctions given by natural many ...
Universal control of an oscillator with dispersive coupling to a qubit
... its convenient control, the physical qubit is usually the primary resource for quantum information processing. Meanwhile, the oscillator serves as an auxiliary system for quantum state transfer and detection [5]. In fact, the oscillator, associated with a phononic or photonic mode, may have long coh ...
... its convenient control, the physical qubit is usually the primary resource for quantum information processing. Meanwhile, the oscillator serves as an auxiliary system for quantum state transfer and detection [5]. In fact, the oscillator, associated with a phononic or photonic mode, may have long coh ...
Solving the quantum many-body problem via
... macroscopic) number of interacting particles, is an extremely challenging problem. Solutions within the standard framework of (first-quantised) quantum mechanics generally require the knowledge of the full quantum manybody wavefunction. This necessitates an exponentially large amount of information ...
... macroscopic) number of interacting particles, is an extremely challenging problem. Solutions within the standard framework of (first-quantised) quantum mechanics generally require the knowledge of the full quantum manybody wavefunction. This necessitates an exponentially large amount of information ...
DEMONSTRATION OF RYDBERG BLOCKADE AND A NEUTRAL
... Erich for teaching me so much about the inner workings of the various systems that I have used and needed to continue operating after they left. In addition, without the hard work of Thomas to design and program the computer code that controls the entire experiment most of these results may never ha ...
... Erich for teaching me so much about the inner workings of the various systems that I have used and needed to continue operating after they left. In addition, without the hard work of Thomas to design and program the computer code that controls the entire experiment most of these results may never ha ...
Quantum Hall effect in graphene: Status and prospects
... Hall effect. The additional ½ is the hallmark of the chiral nature of the Dirac fermions in graphene. The first plateau occurs at 2e2/h [=(1/2)(4e2/h)] which is absent in non-relativistic 2DES. This is a special status of n = 0 Landau level for the massless fermions: half of its states are hole stat ...
... Hall effect. The additional ½ is the hallmark of the chiral nature of the Dirac fermions in graphene. The first plateau occurs at 2e2/h [=(1/2)(4e2/h)] which is absent in non-relativistic 2DES. This is a special status of n = 0 Landau level for the massless fermions: half of its states are hole stat ...
Theory and simulation of polar and nonpolar polarizable fluids
... molecules that are also polarizable the molecules are modeled as anisotropic Drude oscillators in which the electronic motion along the direction of the permanent dipole and perpendicular to it have different force constants, or equivalently different polarizabilities along the parallel and perpendi ...
... molecules that are also polarizable the molecules are modeled as anisotropic Drude oscillators in which the electronic motion along the direction of the permanent dipole and perpendicular to it have different force constants, or equivalently different polarizabilities along the parallel and perpendi ...
Resistivity induced by a rough surface of thin gold films deposited on
... its thickness is comparable to or smaller than the electron mean free path. The drive to build ever-faster circuits generates the drive for miniaturization and VLSI, which poses a pressing need to reach full understanding of electron–rough surface scattering. We review progress in the field that has ...
... its thickness is comparable to or smaller than the electron mean free path. The drive to build ever-faster circuits generates the drive for miniaturization and VLSI, which poses a pressing need to reach full understanding of electron–rough surface scattering. We review progress in the field that has ...
The information paradox: A pedagogical introduction Samir D. Mathur Department of Physics,
... physics’. The term signifies that we can do normal physics when spacetime curvatures are of the order found in our solar system. Definition D1: Solar system limit: There must exist a set of ‘niceness conditions’ N containing a small parameter ǫ such that when ǫ is made arbitrarily small then physic ...
... physics’. The term signifies that we can do normal physics when spacetime curvatures are of the order found in our solar system. Definition D1: Solar system limit: There must exist a set of ‘niceness conditions’ N containing a small parameter ǫ such that when ǫ is made arbitrarily small then physic ...
Quantum theory of ion-atom interactions
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
... on the analytic solutions for the long-range, −1/R4 , polarization potential. Ion-atom interactions, especially at cold temperatures of a few kelvin or lower, are complicated by the rapid energy variations induced by the long-range polarization potential, by the generally large number of contributin ...
Planck Mass Plasma Vacuum Conjecture
... As before, ψ−† ψ− can be treated as a c-number with regard to the operators ψ +† , ψ+ and vice versa. In these terms ψ−† ψ− (resp. ψ+† ψ+ ) acts like an external potential. It is well known that for a nonrelativistic field theory without interaction, but in the presence of an external potential the ...
... As before, ψ−† ψ− can be treated as a c-number with regard to the operators ψ +† , ψ+ and vice versa. In these terms ψ−† ψ− (resp. ψ+† ψ+ ) acts like an external potential. It is well known that for a nonrelativistic field theory without interaction, but in the presence of an external potential the ...
M12/16
... 2.1. Lipschitz Pairs. At the root of our work is a pair (A, L) of a C*-algebra and a seminorm L enjoying various properties. We start with the most minimal assumptions on L in this section and introduce the context of the rest of this paper. Notation 2.2. Let A be a C*-algebra. The smallest unital C ...
... 2.1. Lipschitz Pairs. At the root of our work is a pair (A, L) of a C*-algebra and a seminorm L enjoying various properties. We start with the most minimal assumptions on L in this section and introduce the context of the rest of this paper. Notation 2.2. Let A be a C*-algebra. The smallest unital C ...
pptx - IHES
... Jacobi relations for numerators also exist at loop level.. but still an open question to develop direct vertex formalism (scalar amplitudes??) Especially in gravity computations – such relations can be crucial testing UV behaviour ...
... Jacobi relations for numerators also exist at loop level.. but still an open question to develop direct vertex formalism (scalar amplitudes??) Especially in gravity computations – such relations can be crucial testing UV behaviour ...