The engineering challenge of constructing viable apparatuses necessary to achieve quantum computing is as multifaceted as the theoretical sciences that steered the requisite to accomplish them. In fact, Dr. Subhash Kak, of Oklahoma State University, doubts the likelihood that “useful quantum computers” are attainable ”due to the inevitability of random errors in the hardware”. He is not entirely alone (M. I. Dyakonov); however, China, the United States and the European Union are investing billions of dollars to develop and promote the quantum sciences, as well as are the major corporate entities of Google, IBM, Intel and Microsoft, among others.
These two opposing camps see the future very differently; literally, Dr. Dyakonov visualizes this opposition ”...from the Enemy Camp”. The primary hurdle is one of ”small random errors”. As Dr. Kak stated, ”In a quantum computer, such errors arise from the non-ideal circuit elements and the interaction of the qubits with the environment around them. For these reasons the qubits can lose coherency in a fraction of a second and, therefore, the computation must be completed in even less time. If random errors – which are inevitable in any physical system – are not corrected, the computer’s results will be worthless.”
Given the financial commitment of the private and governmental organization’s ’camp’, this opposition continues without pause. For the private players, the monetary rewards are the ’siren call’ whose allure they cannot resist; as for governments, data and communication security along with the ever present need to stay ahead of their adversaries is motive, paramount.
Source: A quantum computing future is unlikely, due to random hardware errors, “THE CONVERSATION”, December 3, 2019 7.58am EST
“Quis custodiet ipsos custodes?“ - Decimus Junius Juvenalis
“Numero, Pondere et Mensura“