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Creativity, GeoHumanities, and the Politics of Writing: Harriet Hawkins
Jinhyoung Lee Academy of Mobility Humanities 2024 Mobility Humanities Vol.3 No.2
This piece aims to prompt the audience to engage with the contextual background of “An Interview with Harriet Hawkins,” conducted by Jinhyoung Lee. Harriet Hawkins’ works over the past ten years can be summarised using three keywords: creativity, GeoHumanities, and the politics of writing. They are considered to encapsulate the essence of her ongoing research. First, creativity is understood not only as the preserve of the artistic genius that produces creative outputs but also as an everyday creative practice that enables individuals to live differently. In this vein, she seeks to advance a creative (re)turn in geography. Second, the term “GeoHumanities” can be defined as the intensification of work at the intersections of geographical practice with arts and humanities practice. It allows her to conceptualise the notion of “a research aesthetics,” as conducted by artists, and “an experiment with the GeoHumanities,” as practised by researchers. Finally, Hawkins endeavours to combine paraethonography and autoethonography by orienting “an injunction to keep questioning” towards her research culture and her own research. This can be defined as a politics of writing that attempts to envisage life, research, and worlds in a different manner.
Quantum noise reduction in intensity-sensitive surface-plasmon-resonance sensors
Lee, Joong-Sung,Huynh, Trung,Lee, Su-Yong,Lee, Kwang-Geol,Lee, Jinhyoung,Tame, Mark,Rockstuhl, Carsten,Lee, Changhyoup American Physical Society 2017 Physical Review A Vol.96 No.3
<P>We investigate the use of twin-mode quantum states of light with symmetric statistical features in their photon number for improving intensity-sensitive surface plasmon resonance (SPR) sensors. For this purpose, one of the modes is sent into a prism setup where the Kretschmann configuration is employed as a sensing platform and the analyte to be measured influences the SPR excitation conditions. This influence modifies the output state of light that is subsequently analyzed by an intensity-difference measurement scheme. We show that quantum noise reduction is achieved not only as a result of the sub-Poissonian statistical nature of a single mode, but also as a result of the nonclassical correlation of the photon number between the two modes. When combined with the high sensitivity of the SPR sensor, we show that the use of twin-mode quantum states of light notably enhances the estimation precision of the refractive index of an analyte. With this we are able to identify a clear strategy to further boost the performance of SPR sensors, which are already a mature technology in biochemical and medical sensing applications.</P>
Experimental demonstration of error-insensitive approximate universal-not gates
Lee, Sang Min,Bang, Jeongho,Kim, Heonoh,Jeong, Hyunseok,Lee, Jinhyoung,Moon, Han Seb American Physical Society 2014 Physical review. A. Atomic, molecular, and optical Vol.89 No.5
We propose and experimentally demonstrate an approximate universal-NOT (UNOT) operation that is robust against operational errors. In our proposal, the UNOT operation is composed of stochastic unitary operations represented by the vertices of regular polyhedrons. The operation is designed to be robust against random operational errors by increasing the number of unitary operations (i.e., reference axes). Remarkably, no increase in the total number of measurements nor additional resources are required to perform the UNOT operation. Our method can be applied in general to reduce operational errors to an arbitrary degree of precision when approximating any antiunitary operation in a stochastic manner.
Entanglement Reciprocation between Qubits and Continuous Variables
Lee, Jinhyoung,Paternostro, M.,Kim, M. S.,Bose, S. American Physical Society 2006 Physical review letters Vol.96 No.8
<P>We investigate how entanglement can be transferred between qubits and continuous-variable (CV) systems. We find that one ebit borne in maximally entangled qubits can be fully transferred to two CV systems which are initially prepared in a pure separable Gaussian field with high excitation. We show that it is possible to retrieve the entanglement back to qubits from the entangled CV systems. The deposition of multiple ebits from qubits to the initially separable CV systems is also pointed out. We show that the entanglement transfer and retrieval are done at a quasisteady state.</P>
Lee, Soojoon,Lee, Jinhyoung,Kim, Jaewan American Physical Society 2009 Physical review. A. Atomic, molecular, and optical Vol.79 No.3
<P>We study the explicit relation between violation of Bell inequalities and bipartite distillability of multiqubit states. It has been shown that even though for N >= 8 there exist N-qubit bound entangled states which violates a Bell inequality [W. Dur, Rev. Lett. 87, 230402 (2001)], for all the states violating the inequality there exists at least one splitting of the parties into two groups such that pure-state entanglement can be distilled [A. Acin, Rev. Lett. 88, 027901 (2002)]. We here prove that for all N-qubit states violating the inequality the number of distillable bipartite splits increases exponentially with N, and hence the probability that a randomly chosen bipartite split is distillable approaches 1 exponentially with N, as N tends to infinity. We also show that there exists at least one N-qubit bound entangled state violating the inequality if and only if N >= 6.</P>
Advanced Introduction to Mobilities
Jinhyoung Lee Academy of Mobility Humanities 2022 Mobility Humanities Vol.1 No.2
This is the first introduction to mobilities studies, authored by one of the pioneering and leading scholars in the field, Mimi Sheller. Starting to be theoretically sought by John Urry and his colleagues engaging mainly in social sciences at Lancaster University about two decades ago, mobilities research increasingly brings together scholars from different academic backgrounds. This includes not only sociology, geography, and anthropology but also cultural and literary studies, art, and philosophy, testifying to its transdisciplinarity (Adey et al. 3). By defining the new mobilities paradigm not simply as “a totalising or reductive description of the contemporary world” but rather as “a set of questions, theories, and methodologies” (Sheller and Urry 210), it has propelled the “streams of scholarship that develop different theories, methods, and ‘styles’ of analysis in order to understand mobilities” (Faulconbridge and Hui 4). The publication of the first introduction in a condensed, small format, therefore, may be deemed to demonstrate the scholarship’s exuberance and elusiveness of continuously emerging offshoots; thus, which necessitates a guideline for entering the academia.