Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"Quantum gas microscope"”.
-
A single-site resolution fermionic quantum-gas microscope
Quantum-gas microscopes have become an important tool in quantum simulation as they enable direct probing of local quantities by single-atom-resolved detection in optical lattices. Recent years have seen many fascinating results from the bosonic quantum-gas microscopes using 87Rb. However, no such …
-
Controlling ultracold fermions under a quantum gas microscope
… presents the experimental work on building a quantum gas microscope, employing fermionic 40K atoms in an optical lattice, and precision control of the atoms under the microscope. This system works as a natural simulator of the 2D Hubbard model, which describes materials with strongly …
-
Towards a quantum gas microscope for fermionic atoms
… experiment with fermionic ultracold atomic gases. First, we describe the construction of a laser system capable of cooling and trapping gaseous lithium-6 atoms in a 3D Magneto-Optical Trap. Second, we discuss the realization of a 2D Magneto-Optical Trap which, in our experiment, acts as a …
-
Construction of a quantum gas microscope for fermionic atoms
… ultracold atoms in optical lattices: the Fermi gas microscope. Improving upon similar designs for bosonic atoms, our Fermi gas microscope has the novel feature of being able to achieve single-site resolved imaging of fermionic atoms in an optical lattice; specifically, we use fermionic …
-
Fermion pairing and correlations under a quantum gas microscope
Understanding interacting quantum systems is a central goal of modern physics, with applications ranging from quantum chemistry to nuclear physics to the design of novel superconductors. This thesis describes the creation of exotic phases of quantum matter built from ultracold fermionic atoms …
-
Creation of an all-optical Bose-Einstein condensate
… of the two-species, 87Rb and 85Rb, bosonic quantum gas microscope. In particular on the initial cooling and trapping of 87Rb atoms, with the creation of a large all-optically cooled Bose-Einstein condensate as a proof of the temperatures and densities achieved. In most cold atoms …
-
Quantum Computation and Simulation using Fermion Pair Registers
Quantum gas microscopes provide a powerful toolbox for probing quantum many-body physics. Recently, an exciting progress has been reported on realizing a large-scale quantum register of fermion pairs with a quantum gas microscope, in which tightly localized fermion pairs are used to encode qubits …
-
Quantum Gas Microscopy of Bosonic Correlations in the Continuum
… experimental platform into a high-resolution quantum gas microscope for ultracold 87Rb atoms. Quantum gas microscopes enable site-resolved imaging, providing unprecedented access to quantum statistical effects and many-body phenomena. While such instruments are often employed to study physics …
-
Quantum simulation with an optical kagome lattice
… and operation of an ultracold atom- based quantum simulator for studying the kagome lattice and the associated flat band. Despite a copious amount of theoretical effort to elucidate the physics of the kagome lattice, experimental kagome physics is still in its infancy. In the case of …
-
Phase Stabilised Superlattices for Quantum Simulation
… details the construction and operation of a new quantum simulation experiment for studying bosonic (and in the future fermionic) atoms in interesting triangular superlattice structures. We show that this machine can reliably and stably produce samples of ultracold potassium and rubidium in the …
-
Bose-Hubbard physics in the kagome and triangular optical lattices at negative absolute temperature
This thesis describes quantum many-body experiments with ultracold bosonic ³⁹K in the kagome and triangular optical lattices. These lattices display geometric frustration, which manifests itself in a degeneracy at the upper edge of the ground band manifold. In the case of the triangular lattice, …
-
Creating novel quantum states of ultracold bosons in optical lattices
… developed platforms of interest for building quantum devices suitable for quantum simulation and quantum computation. Ultracold trapped atoms are advantageous because they are fundamentally indistinguishable qubits that can be prepared with high fidelity in well-defined states and read-out …
-
Single-atom imaging of 40K atoms via raman sideband cooling
… a T /TF of 0.18, well into the degenerate Fermi-gas regime. We then load the atoms into a 3D optical lattice and prepare ∼ 500 atoms in one anti-node of the vertical lattice. This 2D ‘layer’ of atoms is imaged with single-site resolution, giving us access to the behaviour of quantum many-body …