Much research has been concerned with what constitute necessities and how they are related to pertinent concepts, such as needs, wants, desires, and luxuries (Belk, Ger, and Askegaard 2003; Duncan 2002; Fraser 1998, Hoyer and MacInnis 2004; Kerin, Hartley and Rudelius 2004; Shet…
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We review an iterative path integral method that allows the computation of exact, long-time dynamics of small systems interacting with a dissipative bath. The method takes advantage of the finite memory of large environments at finite temperature to allow an iterative evaluation…
This portfolio of work contributes to the remit of the National Physical Laboratory (NPL) to develop the underpinning expertise and tools for validating nascent and future optical quantum technologies based on the discrete and quantum properties of photons. This requirement over…
This thesis probes the usefulness of non-classical correlations within imperfect continuous variable decoherent quantum systems. Although a consistent function and practical usefulness of these correlations is largely unknown, it is important to examine their characteristics in …
Quantum systems with finite Hilbert space are considered. Position and mo- mentum states and their relation through a Fourier transform, displacement in the position-momentum phase-space, and symplectic transformations are introduced and their properties are studied. Symplectic …
In this thesis, we are concerned with continuous-variable quantum optical state engineering protocols. Such protocols are designed to repair or enhance the nonclassical features of a given state. In particular, we build a weak measurement model of Gaussian entanglement concentra…
This is a study of a movement for merdeka (freedom) in West Papua, the half of New Guinea that has been under Indonesian administration since 1963. Here many indigenous visionaries inhabit both historical and messianic time. Living in this dual temporality can produce concrete p…
More than a century after the seminal work of Schmidt and with all the enthusiasm that have surrounded entanglement ever since the controversial EPR paper, it remains an open challenge to determine whether a given state possesses entanglement or not. The problem is even more dic…
Quantum information science uses the distinguishing features of quantum mechanics for novel information processing tasks, ranging from metrology to computation. This manuscript explores multiple topics in this field. We discuss implementations of hybrid quantum systems composed …
Bagan, Myanmar’s capital during the country’s Classical period (c. 800-1400 CE), and its surrounding landscape was once home to at least four thousand monuments. These monuments were the result of the Buddhist pursuit of merit-making, the idea that individuals could increase the…