Quantum computers are expected to be exponentially faster than classical digitalelectronics for many applications. They have thus generated enormous interest and influx of funds from federal agencies, private venture capital, large technology companies, and even financial companies such as Goldman Sachs. Existing mK-cooled quantum computers use qubits based on superconducting Josephson junctions (JJs). The transmon is the most widely used superconducting qubit, and consists of a JJ coupled to a capacitive element (C) in a nonlinear LC resonator. The JJ acts a nonlinear inductor (L) due to its nonlinear kinetic inductance resulting from the periodic Josephson coupling energy. Due to anharmonicity, the lowest two energy levels have greater spacing than higher excited states, so the bottom two states typically represent |0⟩ and |1⟩ states of the qubit. The qubit concepts proposed here will interchange the roles of which element is nonlinear in the LC resonator. The inductive component L can be the material’s own kinetic inductance, an element that is superconductive but linear, with a much higher Tc than materials used in current devices, or in some cases even a cooled normal metal. The capacitive component (C) will employ a nonlinear capacitive material. Suitable materials include, but are not necessarily limited to, those that form charge and spin density waves (CDWs & SDWs), quantum paraelectrics, and ferroelectrics. The above concept can be extended to qubits that incorporate a series JJ array. In this case the qubit will consist of a nonlinear capacitive element (e.g., CDW or SDW) coupled to a linear chain of JJs of larger sizes and coupling energies than transmon JJs. The JJ chain forms a (nearly linear) inductive component for the LC resonator and is designed to further suppresses decoherence caused by 1/f flux noise and other factors.