On leaving academia and the need to take refuge

Modern and Contemporary Studie

It’s systemic: leaving academia and the politics of withdrawal

Modern and Contemporary Studie

Retreat culture and therapeutic disconnection

Modern and Contemporary Studie

Vortex dynamics in superconducting channels with periodic constrictions

Vortices confined to superconducting easy flow channels with periodic constrictions exhibit reversible oscillations in the critical current at which vortices begin moving as the external magnetic field is varied. This commensurability scales with the channel shape and arrangement, although screening effects play an important role. For large magnetic fields, some of the vortices become pinned outside of the channels, leading to magnetic hysteresis in the critical current. Some channel configurations also exhibit a dynamical hysteresis in the flux-flow regime near the matching fields

Picovoltmeter for probing vortex dynamics in a single weak-pinning Corbino channel

We have developed a picovoltmeter using a Nb dc Superconducting QUantum Interference Device (SQUID) for measuring the flux-flow voltage from a small number of vortices moving through a submicron weak-pinning superconducting channel. We have applied this picovoltmeter to measure the vortex response in a single channel arranged in a circle on a Corbino disk geometry. The circular channel allows the vortices to follow closed orbits without encountering any sample edges, thus eliminating the influence of entry barriers.Comment: 4 pages, 3 figures, submitted to Review of Scientific Instrument

Een politiek van de afzondering

Modern and Contemporary Studie

Ledgers and legibility: a conversation on the significance of noise within digital colonial archives

This conversation takes Katrine Dirckinck-Holmfeld’s installation and perfor- mative presentation The Christmas Report & Other Fragments (2017) as a start- ing point to discuss legibility in relation to the mass digitization of the colonial archives in Denmark. To gain access to the archive, Dirckinck-Holmfeld draws on the figure of the Data Thief, inspired by The Black Audio Film Collective, in an attempt to unearth and excel the vulnerabilities and ethical dilemmas at the heart of today’s data desire. The Data Thief, Dirckinck-Holmfeld claims in conversation with Pepita Hesselberth, teaches us to attune to the noise, to the sonorous, affective and textural dimensions of the archive. It compels us to create assemblages of enunciation that cut across semiotic and machinic flows, and invites us to nourish a relationship to time where the past keeps enfolding on itself in the present. This way, she concludes, it demands us to stay in and with the discomfort, and to stay in the cybernetic fold of radical, creative, decolonial and technological reimagination.Made possible with the support of the Danish Council for Independent Research Humanities | Culture & Communication (grant no. 5050-00043B)Modern and Contemporary Studie