Citizenship:Contrasting Dynamics at the Interface of Integration and Constitutionalism

EUDO Citizenship ObservatoryThis paper explores the different ways in which citizenship has played a role in polity formation in the context of the European Union. It focuses on both the ‘integration’ and the ‘constitution’ dimensions. The paper thus has two substantive sections. The first addresses the role of citizenship of the Union, examining the dynamic relationship between this concept, the role of the Court of Justice, and the free movement dynamic of EU law. The second turns to citizenship in the Union, looking at some recent political developments under which concepts of citizenship, and democratic membership as a key dimension of citizenship, have been given greater prominence. One key finding of the paper is that there is a tension between citizenship of the Union, as part of the EU's ‘old’ incremental constitutionalism based on the constitutionalisation of the existing Treaties, and citizenship in the Union, where the possibilities of a ‘new’ constitutionalism based on renewed constitutional documents have yet to be fully realise

Rationale for UV-filtered clover fermions

We study the contributions Sigma_0 and Sigma_1, proportional to a^0 and a^1, to the fermion self-energy in Wilson's formulation of lattice QCD with UV-filtering in the fermion action. We derive results for m_{crit} and the renormalization factors Z_S, Z_P, Z_V, Z_A to 1-loop order in perturbation theory for several filtering recipes (APE, HYP, EXP, HEX), both with and without a clover term. The perturbative series is much better behaved with filtering, in particular tadpole resummation proves irrelevant. Our non-perturbative data for m_{crit} and Z_A/(Z_m*Z_P) show that the combination of filtering and clover improvement efficiently reduces the amount of chiral symmetry breaking -- we find residual masses am_{res}=O(10^{-2}).Comment: 25 pages, 4 figures; v2: typo in eqn. (37) fixed [agrees with published version

Dynamical Behaviour of Low Autocorrelation Models

We have investigated the nature of the dynamical behaviour in low autocorrelation binary sequences. These models do have a glass transition $T_G$ of a purely dynamical nature. Above the glass transition the dynamics is not fully ergodic and relaxation times diverge like a power law $\tau\sim (T-T_G)^{-\gamma}$ with $\gamma$ close to $2$. Approaching the glass transition the relaxation slows down in agreement with the first order nature of the dynamical transition. Below the glass transition the system exhibits aging phenomena like in disordered spin glasses. We propose the aging phenomena as a precise method to determine the glass transition and its first order nature.Comment: 19 pages + 14 figures, LateX, figures uuencoded at the end of the fil

Quark mixing from softly broken symmetries

Quark flavor mixing may originate in the soft breaking of horizontal symmetries. Those symmetries, which in the simplest case are three family U(1) groups, are obeyed only by the dimension-4 Yukawa couplings and lead, when unbroken, to the absence of mixing. Their breaking may arise from the dimension-3 mass terms of SU(2)-singlet vector-like quarks. Those gauge-singlet mass terms break the horizontal symmetries at a scale much higher than the Fermi scale, yet softly, leading to quark mixing while the quark masses remain unsuppressed.Comment: 9 pages, plain Latex, no figure

Retracing the Right to Free Movement: Mapping a Path Forward

As a founding principle of the EU, a prerequisite for the exercise of most other EU rights, and a key component of EU integration, the freedom of movement right has carried great political and practical importance. It has also been one of the most contested, politically abused, and poorly understood of EU rights, particularly in the context of mobility of nationals from Central and Eastern Europe (“CEE”). Notably, misinformation regarding the free movement right that was spread by the media, politicians, and the public helped to propel both the UK’s renegotiation of its EU membership and, ultimately, its exit from the Union. Other EU-15 State politicians have also been perpetuating myths about freedom of movement and immigration. Scholars addressing free movement, even in the context of Brexit, have devoted little attention to this right’s conceptualization as it has evolved over time, to how EU branches other than the European Court of Justice have approached it, or to how CEE nationals have been positioned and impacted by mobility’s legal framework. Although some critical scholars have critiqued derogations from the free movement right imposed on CEE nationals in the aftermath of their States’ accession to the EU, they have also failed to situate their analysis within a broader look at the creation and application of the legal framework behind mobility. CEE movers in the UK and other EU-15 States have tended to be racialized by the media, politicians, and the public – that is, described and approached by individuals and institutions in ways which denigrate or assume their inferiority. Hence, several tenets of critical race theory (“CRT”) and critical whiteness studies (“CWS”) that expound the relationship between race, power, society, and law are helpful to the analysis of their mobility. This Article argues that the freedom of movement right has always been limited, and that CEE nationals’ mobility rights have been especially restricted by both EU statutes and case law – and further impeded by restrictive Member State policies. Ultimately, the right of free movement has been created and consistently applied in a way as to benefit EU-15 States’ economies, while approaching CEE movers as mere units of production. This broader understanding of this right is necessary to make Brexit negotiations more meaningful, and debates about intra-EU movers in other EU-15 States more responsible. Moreover, the discussion here also critiques CRT and CWS for overlooking the significance of immigrant background and of white minority ethnicities in the conceptualization and experience of equality. I suggest that both theoretical frameworks need to not only look beyond the black-white binary, but also consider contemporary transnational power dynamics to arrive at a more flexible and nuanced picture of micro-level racial and ethnic power relations in today’s globalized world