AMA's scheme to protect JAMA's independence has drawbacks

Multi - Sentinel Scheme To Protect a

Exact Scheme Independence

Scheme independence of exact renormalization group equations, including independence of the choice of cutoff function, is shown to follow from general field redefinitions, which remains an inherent redundancy in quantum field theories. Renormalization group equations and their solutions are amenable to a simple formulation which is manifestly covariant under such a symmetry group. Notably, the ...

Unwind-protect in portable Scheme

Programming languages that allow non-local control jumps also need to provide an unwind-protect facility. Unwind-protect associates a postlude with a given block B of code, and guarantees that the postlude will always be executed regardless of whether B concludes normally or is exited by a jump. This facility is routinely provided in all languages with first-order control operators. Unfortunate...

A scheme to protect against multiple quantum erasures

We present a scheme able to protect k ≥ 3 qubits of information against the occurrence of multiple erasures, based on the code proposed by Yang et al. (2004 JETP Letters 79 236). In this scheme redundant blocks are used and we restrict to the case that each erasure must occur in distinct blocks. We explicitly characterize the encoding operation and the restoring operation required to implement ...

Exact scheme independence at two loops

We further develop an algorithmic and diagrammatic computational framework for very general exact renormalization groups, where the embedded regularisation scheme, parametrised by a general cutoff function and infinitely many higher point vertices, is left unspecified. Calculations proceed iteratively, by integrating by parts with respect to the effective cutoff, thus introducing effective prop...