This thesis presents two demonstrations of Zeeman sub-level Raman sideband transitions in trapped 171Yb+ ions that are to be used for the demonstration of a proof-of-concept quantum spin-heat engine (SHE)[1]. This Raman transition scheme has not previously been demonstrated on any I = 1/2 ion and relies on a single continuous wave (CW) laser and two acousto-optic modulators (AOMs) making it relatively cheap and easy to set up compared to other methods involving exotic pulsed lasers[2, 3] or complex optical setups[4, 5]. Using these novel transitions, I have demonstrated Raman sideband cooling below the Doppler limit on the two most strongly coupled modes of a trapped ion’s motion and have shown good agreement with the theory for light-motion coupling of bound atoms. I also improved the scheme by zeroing light shift and Raman sideband cooling to ¯n = 0.30(13) in a single motional mode. I also developed methods and prepared control systems to realise a high fidelity single trapped ion qubit. Average qubit measurement fidelities around 99.5% were routinely measured, with single qubit operation fidelities estimated at ∼ 99.99% and qubit initialisation fidelities estimated at ∼ 99.9999%. The qubit is based on the 2S1/2 ground state hyperfine clock transition with a measured T2 coherence time of 4.72(13) ms that is coherently driven by resonant microwaves at a maximum measured Rabi rate of 408.88(8) kHz. Lastly, I perform an in depth frequency stability analysis of a 399 nm laser locked to the 1S0 ↔ 1P0 transition in neutral ytterbium via the polarization enhanced absorption spectroscopy (POLEAS) technique. This locking technique was used for the required excitation of neutral ytterbium in the two-photon isotope-selective ionization technique to generate isotopically pure 171Yb+ or 174Yb+ ions.