A Pattern Word Quiz

For each of the fifty words listed below, you are to supply a non-crashing word having the same pattern of letters. For example, for BEETLE acceptable words include EGGNOG or ATTEST, but not FEEBLE (which has one or more letters in the same place as they appear in BEETLE). Unacceptable words include proper names, regular plurals in -D, regular preterites in -ED, participles in -ING, comparatives in -ER or -IER, superlatives in -EST or -IEST, and slang, dialect or foreign words. All answer words are well-known standard unhyphenated English words in the Merriam-Webster Pocket Dictionary, and appear in alphabetical order. Answers can be found in Answers and Solutions at the end of this issue

Kickshaws

A collection of linguistic kickshaws

See It Now On TV!

Luv Is Void A best-bet arty film. Betty Boop\u27s ex (gimpy guy) seen in Rome. He tried to buy a hot forty-foot one-ton lorry; now the jig is up

A History of Word Puzzling

The National Puzzlers\u27 League, founded as the Eastern Puzzlers\u27 League in New York City in 1883, is devoted to the creation and solution of versified word puzzles, as popular in the nineteenth and early twentieth centuries as crosswords and cryptograms are today. In the fall of 1998, the League privately published The National Puzzlers\u27 League--The First 115 Years, a 380-page bound volume issued free (upon request) to its members and available to others for $14 plus postage (the editor has copies available)

A Reconfigurable Gate Architecture for Si/SiGe Quantum Dots

We demonstrate a reconfigurable quantum dot gate architecture that incorporates two interchangeable transport channels. One channel is used to form quantum dots and the other is used for charge sensing. The quantum dot transport channel can support either a single or a double quantum dot. We demonstrate few-electron occupation in a single quantum dot and extract charging energies as large as 6.6 meV. Magnetospectroscopy is used to measure valley splittings in the range of 35-70 microeV. By energizing two additional gates we form a few-electron double quantum dot and demonstrate tunable tunnel coupling at the (1,0) to (0,1) interdot charge transition.Comment: Related papers at http://pettagroup.princeton.ed

Scalable gate architecture for densely packed semiconductor spin qubits

We demonstrate a 12 quantum dot device fabricated on an undoped Si/SiGe heterostructure as a proof-of-concept for a scalable, linear gate architecture for semiconductor quantum dots. The device consists of 9 quantum dots in a linear array and 3 single quantum dot charge sensors. We show reproducible single quantum dot charging and orbital energies, with standard deviations less than 20% relative to the mean across the 9 dot array. The single quantum dot charge sensors have a charge sensitivity of 8.2 x 10^{-4} e/root(Hz) and allow the investigation of real-time charge dynamics. As a demonstration of the versatility of this device, we use single-shot readout to measure a spin relaxation time T1 = 170 ms at a magnetic field B = 1 T. By reconfiguring the device, we form two capacitively coupled double quantum dots and extract a mutual charging energy of 200 microeV, which indicates that 50 GHz two-qubit gate operation speeds are feasible